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* [pinchartl-media:am65x/devel/v4 33/50] drivers/media/mc/mc-entity.c:443 __media_pipeline_start() error: uninitialized symbol 'ret'.
@ 2021-01-29  7:17 ` Dan Carpenter
  0 siblings, 0 replies; 3+ messages in thread
From: Dan Carpenter @ 2021-01-29  7:17 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 5656 bytes --]

tree:   git://linuxtv.org/pinchartl/media.git am65x/devel/v4
head:   bd5d5f421c359cb5291d07410087503dd21bb0fe
commit: 9e10bd721ab5707b8787fef07d50ba418056e9e1 [33/50] media: entity: Move the pipeline from entity to pads
config: i386-randconfig-m021-20210128 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/media/mc/mc-entity.c:443 __media_pipeline_start() error: uninitialized symbol 'ret'.

vim +/ret +443 drivers/media/mc/mc-entity.c

20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  406  __must_check int __media_pipeline_start(struct media_entity *entity,
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  407  					struct media_pipeline *pipe)
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  408  {
d10c98949d1a1f drivers/media/media-entity.c Javier Martinez Canillas  2015-08-19  409  	struct media_device *mdev = entity->graph_obj.mdev;
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  410  	struct media_graph *graph = &pipe->graph;
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  411  	struct media_pad *pad = entity->pads;
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  412  	struct media_pad *pad_err = pad;
57208e5e25f263 drivers/media/media-entity.c Mauro Carvalho Chehab     2015-08-07  413  	struct media_link *link;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  414  	int ret;
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  415  
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  416  	if (!pipe->streaming_count++) {
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  417  		ret = media_graph_walk_init(&pipe->graph, mdev);
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  418  		if (ret)
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  419  			goto error_graph_walk_start;
106b9907c368e3 drivers/media/media-entity.c Sakari Ailus              2015-12-16  420  	}
106b9907c368e3 drivers/media/media-entity.c Sakari Ailus              2015-12-16  421  
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  422  	media_graph_walk_start(&pipe->graph, pad);
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  423  
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  424  	while ((pad = media_graph_walk_next(graph))) {
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  425  		struct media_entity *entity = pad->entity;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  426  		bool skip_validation = pad->pipe;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  427  		struct media_pad *iter;
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  428  
ef69ee1bc2c10f drivers/media/media-entity.c Mauro Carvalho Chehab     2015-10-01  429  		DECLARE_BITMAP(active, MEDIA_ENTITY_MAX_PADS);
ef69ee1bc2c10f drivers/media/media-entity.c Mauro Carvalho Chehab     2015-10-01  430  		DECLARE_BITMAP(has_no_links, MEDIA_ENTITY_MAX_PADS);
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  431  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  432  		media_entity_for_each_pad(entity, iter) {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  433  			if (iter->pipe && iter->pipe != pipe) {
3eb87773dee633 drivers/media/media-entity.c Shuah Khan                2019-02-22  434  				pr_err("Pipe active for %s. Can't start for %s\n",
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  435  				       entity->name, iter->entity->name);
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  436  				ret = -EBUSY;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  437  			} else {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  438  				iter->pipe = pipe;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  439  			}
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  440  			iter->stream_count++;
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  441  		}
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  442  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28 @443  		if (ret)
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  444  			goto error;

"ret" is not necessarily set on the success path.

af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  445  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  446  		/* Already part of the pipeline, skip validation. */
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  447  		if (skip_validation)

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 34410 bytes --]

^ permalink raw reply	[flat|nested] 3+ messages in thread
* [pinchartl-media:am65x/devel/v4 33/50] drivers/media/mc/mc-entity.c:443 __media_pipeline_start() error: uninitialized symbol 'ret'.
@ 2021-01-28  8:04 kernel test robot
  0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2021-01-28  8:04 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 17313 bytes --]

CC: kbuild-all(a)lists.01.org
TO: Sakari Ailus <sakari.ailus@linux.intel.com>
CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
CC: "Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>
CC: Jacopo Mondi <jacopo+renesas@jmondi.org>

tree:   git://linuxtv.org/pinchartl/media.git am65x/devel/v4
head:   bd5d5f421c359cb5291d07410087503dd21bb0fe
commit: 9e10bd721ab5707b8787fef07d50ba418056e9e1 [33/50] media: entity: Move the pipeline from entity to pads
:::::: branch date: 7 hours ago
:::::: commit date: 8 hours ago
config: i386-randconfig-m021-20210128 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/media/mc/mc-entity.c:443 __media_pipeline_start() error: uninitialized symbol 'ret'.

vim +/ret +443 drivers/media/mc/mc-entity.c

d295c6a460cd2a drivers/media/media-entity.c Niklas Söderlund          2017-06-15  401  
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  402  /* -----------------------------------------------------------------------------
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  403   * Pipeline management
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  404   */
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  405  
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  406  __must_check int __media_pipeline_start(struct media_entity *entity,
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  407  					struct media_pipeline *pipe)
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  408  {
d10c98949d1a1f drivers/media/media-entity.c Javier Martinez Canillas  2015-08-19  409  	struct media_device *mdev = entity->graph_obj.mdev;
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  410  	struct media_graph *graph = &pipe->graph;
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  411  	struct media_pad *pad = entity->pads;
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  412  	struct media_pad *pad_err = pad;
57208e5e25f263 drivers/media/media-entity.c Mauro Carvalho Chehab     2015-08-07  413  	struct media_link *link;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  414  	int ret;
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  415  
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  416  	if (!pipe->streaming_count++) {
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  417  		ret = media_graph_walk_init(&pipe->graph, mdev);
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  418  		if (ret)
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  419  			goto error_graph_walk_start;
106b9907c368e3 drivers/media/media-entity.c Sakari Ailus              2015-12-16  420  	}
106b9907c368e3 drivers/media/media-entity.c Sakari Ailus              2015-12-16  421  
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  422  	media_graph_walk_start(&pipe->graph, pad);
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  423  
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  424  	while ((pad = media_graph_walk_next(graph))) {
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  425  		struct media_entity *entity = pad->entity;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  426  		bool skip_validation = pad->pipe;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  427  		struct media_pad *iter;
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  428  
ef69ee1bc2c10f drivers/media/media-entity.c Mauro Carvalho Chehab     2015-10-01  429  		DECLARE_BITMAP(active, MEDIA_ENTITY_MAX_PADS);
ef69ee1bc2c10f drivers/media/media-entity.c Mauro Carvalho Chehab     2015-10-01  430  		DECLARE_BITMAP(has_no_links, MEDIA_ENTITY_MAX_PADS);
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  431  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  432  		media_entity_for_each_pad(entity, iter) {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  433  			if (iter->pipe && iter->pipe != pipe) {
3eb87773dee633 drivers/media/media-entity.c Shuah Khan                2019-02-22  434  				pr_err("Pipe active for %s. Can't start for %s\n",
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  435  				       entity->name, iter->entity->name);
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  436  				ret = -EBUSY;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  437  			} else {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  438  				iter->pipe = pipe;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  439  			}
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  440  			iter->stream_count++;
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  441  		}
8aaf62b5b9bef7 drivers/media/media-entity.c Sakari Ailus              2015-11-29  442  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28 @443  		if (ret)
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  444  			goto error;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  445  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  446  		/* Already part of the pipeline, skip validation. */
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  447  		if (skip_validation)
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  448  			continue;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  449  
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  450  		if (!entity->ops || !entity->ops->link_validate)
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  451  			continue;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  452  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  453  		bitmap_zero(active, entity->num_pads);
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  454  		bitmap_fill(has_no_links, entity->num_pads);
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  455  
57208e5e25f263 drivers/media/media-entity.c Mauro Carvalho Chehab     2015-08-07  456  		list_for_each_entry(link, &entity->links, list) {
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  457  			struct media_pad *other_pad =
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  458  				link->sink->entity == entity ?
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  459  				link->sink : link->source;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  460  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  461  			/* Mark that a pad is connected by a link. */
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  462  			bitmap_clear(has_no_links, other_pad->index, 1);
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  463  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  464  			/*
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  465  			 * Pads that either do not need to connect or
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  466  			 * are connected through an enabled link are
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  467  			 * fine.
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  468  			 */
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  469  			if (!(pad->flags & MEDIA_PAD_FL_MUST_CONNECT) ||
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  470  			    link->flags & MEDIA_LNK_FL_ENABLED)
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  471  				bitmap_set(active, other_pad->index, 1);
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  472  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  473  			/*
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  474  			 * Link validation will only take place for
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  475  			 * sink ends of the link that are enabled.
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  476  			 */
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  477  			if (link->sink != other_pad ||
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  478  			    !(link->flags & MEDIA_LNK_FL_ENABLED))
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  479  				continue;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  480  
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  481  			ret = entity->ops->link_validate(link);
fab9d30b7b4216 drivers/media/media-entity.c Sakari Ailus              2014-10-28  482  			if (ret < 0 && ret != -ENOIOCTLCMD) {
d10c98949d1a1f drivers/media/media-entity.c Javier Martinez Canillas  2015-08-19  483  				dev_dbg(entity->graph_obj.mdev->dev,
91b619adeb3753 drivers/media/media-entity.c Sakari Ailus              2016-12-08  484  					"link validation failed for '%s':%u -> '%s':%u, error %d\n",
823ea2a639611f drivers/media/media-entity.c Sakari Ailus              2015-02-12  485  					link->source->entity->name,
823ea2a639611f drivers/media/media-entity.c Sakari Ailus              2015-02-12  486  					link->source->index,
823ea2a639611f drivers/media/media-entity.c Sakari Ailus              2015-02-12  487  					entity->name, link->sink->index, ret);
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  488  				goto error;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  489  			}
fab9d30b7b4216 drivers/media/media-entity.c Sakari Ailus              2014-10-28  490  		}
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  491  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  492  		/* Either no links or validated links are fine. */
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  493  		bitmap_or(active, active, has_no_links, entity->num_pads);
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  494  
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  495  		if (!bitmap_full(active, entity->num_pads)) {
47dfdb3a888733 drivers/media/media-entity.c Helen Mae Koike Fornazier 2015-06-28  496  			ret = -ENOLINK;
d10c98949d1a1f drivers/media/media-entity.c Javier Martinez Canillas  2015-08-19  497  			dev_dbg(entity->graph_obj.mdev->dev,
91b619adeb3753 drivers/media/media-entity.c Sakari Ailus              2016-12-08  498  				"'%s':%u must be connected by an enabled link\n",
fab9d30b7b4216 drivers/media/media-entity.c Sakari Ailus              2014-10-28  499  				entity->name,
094f1ca516cd32 drivers/media/media-entity.c Sakari Ailus              2014-11-03  500  				(unsigned)find_first_zero_bit(
094f1ca516cd32 drivers/media/media-entity.c Sakari Ailus              2014-11-03  501  					active, entity->num_pads));
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  502  			goto error;
de49c285a36049 drivers/media/media-entity.c Sakari Ailus              2013-10-13  503  		}
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  504  	}
e02188c90f6ef6 drivers/media/media-entity.c Laurent Pinchart          2010-08-25  505  
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  506  	return 0;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  507  
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  508  error:
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  509  	/*
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  510  	 * Link validation on graph failed. We revert what we did and
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  511  	 * return the error.
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  512  	 */
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  513  	media_graph_walk_start(graph, pad_err);
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  514  
06e04736922bbe drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  515  	while ((pad_err = media_graph_walk_next(graph))) {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  516  		struct media_entity *entity = pad->entity;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  517  		struct media_pad *iter;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  518  
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  519  		media_entity_for_each_pad(entity, iter) {
12030f489ef87d drivers/media/media-entity.c Sakari Ailus              2016-07-20  520  			/* Sanity check for negative stream_count */
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  521  			if (!WARN_ON_ONCE(iter->stream_count <= 0)) {
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  522  				--iter->stream_count;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  523  				if (iter->stream_count == 0)
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  524  					iter->pipe = NULL;
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  525  			}
3801bc7d1b8dd7 drivers/media/media-entity.c Shuah Khan                2016-01-30  526  		}
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  527  
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  528  		/*
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  529  		 * We haven't increased stream_count further than this
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  530  		 * so we quit here.
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  531  		 */
9e10bd721ab570 drivers/media/mc/mc-entity.c Sakari Ailus              2019-03-28  532  		if (pad_err->entity == pad->entity)
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  533  			break;
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  534  	}
af88be3887c1a0 drivers/media/media-entity.c Sakari Ailus              2012-01-11  535  
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  536  error_graph_walk_start:
74a4133079f739 drivers/media/media-entity.c Sakari Ailus              2015-12-16  537  	if (!--pipe->streaming_count)
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  538  		media_graph_walk_cleanup(graph);
106b9907c368e3 drivers/media/media-entity.c Sakari Ailus              2015-12-16  539  
fb49f20438f361 drivers/media/media-entity.c Shuah Khan                2016-02-11  540  	return ret;
fb49f20438f361 drivers/media/media-entity.c Shuah Khan                2016-02-11  541  }
20b852273642f4 drivers/media/media-entity.c Sakari Ailus              2016-11-21  542  EXPORT_SYMBOL_GPL(__media_pipeline_start);
fb49f20438f361 drivers/media/media-entity.c Shuah Khan                2016-02-11  543  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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2021-01-29  7:17 [pinchartl-media:am65x/devel/v4 33/50] drivers/media/mc/mc-entity.c:443 __media_pipeline_start() error: uninitialized symbol 'ret' Dan Carpenter
2021-01-29  7:17 ` Dan Carpenter
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