drivers/of/dynamic.c:935 of_changeset_action() warn: possible memory leak of 'ce'

[kernel test robot <lkp@intel.com>]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Rob Herring <robh@kernel.org>
CC: Geert Uytterhoeven <geert+renesas@glider.be>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   89bf6209cad66214d3774dac86b6bbf2aec6a30d
commit: 914d9d831e6126a6e7a92e27fcfaa250671be42c of: dynamic: Refactor action prints to not use "%pOF" inside devtree_lock
date:   34 hours ago
:::::: branch date: 6 hours ago
:::::: commit date: 34 hours ago
config: nios2-randconfig-r081-20230822 (https://download.01.org/0day-ci/archive/20230823/202308230814.2zOreL63-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230823/202308230814.2zOreL63-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202308230814.2zOreL63-lkp@intel.com/

smatch warnings:
drivers/of/dynamic.c:935 of_changeset_action() warn: possible memory leak of 'ce'

vim +/ce +935 drivers/of/dynamic.c

183223770ae862 Gavin Shan        2015-11-05  907  
201c910bd6898d Pantelis Antoniou 2014-07-04  908  /**
0290c4ca2536a3 Frank Rowand      2017-10-17  909   * of_changeset_action - Add an action to the tail of the changeset list
201c910bd6898d Pantelis Antoniou 2014-07-04  910   *
201c910bd6898d Pantelis Antoniou 2014-07-04  911   * @ocs:	changeset pointer
201c910bd6898d Pantelis Antoniou 2014-07-04  912   * @action:	action to perform
201c910bd6898d Pantelis Antoniou 2014-07-04  913   * @np:		Pointer to device node
201c910bd6898d Pantelis Antoniou 2014-07-04  914   * @prop:	Pointer to property
201c910bd6898d Pantelis Antoniou 2014-07-04  915   *
201c910bd6898d Pantelis Antoniou 2014-07-04  916   * On action being one of:
201c910bd6898d Pantelis Antoniou 2014-07-04  917   * + OF_RECONFIG_ATTACH_NODE
201c910bd6898d Pantelis Antoniou 2014-07-04  918   * + OF_RECONFIG_DETACH_NODE,
201c910bd6898d Pantelis Antoniou 2014-07-04  919   * + OF_RECONFIG_ADD_PROPERTY
201c910bd6898d Pantelis Antoniou 2014-07-04  920   * + OF_RECONFIG_REMOVE_PROPERTY,
201c910bd6898d Pantelis Antoniou 2014-07-04  921   * + OF_RECONFIG_UPDATE_PROPERTY
8c8239c2c1fb82 Rob Herring       2021-03-25  922   *
8c8239c2c1fb82 Rob Herring       2021-03-25  923   * Return: 0 on success, a negative error value in case of an error.
201c910bd6898d Pantelis Antoniou 2014-07-04  924   */
201c910bd6898d Pantelis Antoniou 2014-07-04  925  int of_changeset_action(struct of_changeset *ocs, unsigned long action,
201c910bd6898d Pantelis Antoniou 2014-07-04  926  		struct device_node *np, struct property *prop)
201c910bd6898d Pantelis Antoniou 2014-07-04  927  {
201c910bd6898d Pantelis Antoniou 2014-07-04  928  	struct of_changeset_entry *ce;
201c910bd6898d Pantelis Antoniou 2014-07-04  929  
201c910bd6898d Pantelis Antoniou 2014-07-04  930  	ce = kzalloc(sizeof(*ce), GFP_KERNEL);
606ad42aa3b1fe Rob Herring       2016-06-15  931  	if (!ce)
201c910bd6898d Pantelis Antoniou 2014-07-04  932  		return -ENOMEM;
606ad42aa3b1fe Rob Herring       2016-06-15  933  
914d9d831e6126 Rob Herring       2023-08-18  934  	if (WARN_ON(action >= ARRAY_SIZE(action_names)))
914d9d831e6126 Rob Herring       2023-08-18 @935  		return -EINVAL;

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