From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: hverkuil@xs4all.nl, laurent.pinchart@ideasonboard.com,
tomi.valkeinen@ideasonboard.com, jacopo.mondi@ideasonboard.com,
bingbu.cao@intel.com, hongju.wang@intel.com,
Alain Volmat <alain.volmat@foss.st.com>
Subject: [PATCH v4 9/9] media: v4l: subdev: Warn on stream when accessing stream-unaware data
Date: Thu, 26 Oct 2023 10:03:29 +0300 [thread overview]
Message-ID: <20231026070329.948847-10-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20231026070329.948847-1-sakari.ailus@linux.intel.com>
Warn if the stream is set ot a non-zero value on sub-device pad state
access functions. A driver bug is required for triggering the warning.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
drivers/media/v4l2-core/v4l2-subdev.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index bd0d89c2996f..b7d2de6e750a 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -1681,7 +1681,7 @@ __v4l2_subdev_state_get_format_stream(struct v4l2_subdev_state *state,
return NULL;
if (state->pads) {
- if (stream)
+ if (WARN_ON(stream))
return NULL;
if (WARN_ON(pad >= state->sd->entity.num_pads))
@@ -1715,7 +1715,7 @@ __v4l2_subdev_state_get_crop_stream(struct v4l2_subdev_state *state,
return NULL;
if (state->pads) {
- if (stream)
+ if (WARN_ON(stream))
return NULL;
if (WARN_ON(pad >= state->sd->entity.num_pads))
@@ -1749,7 +1749,7 @@ __v4l2_subdev_state_get_compose_stream(struct v4l2_subdev_state *state,
return NULL;
if (state->pads) {
- if (stream)
+ if (WARN_ON(stream))
return NULL;
if (WARN_ON(pad >= state->sd->entity.num_pads))
--
2.39.2
next prev parent reply other threads:[~2023-10-26 7:03 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-26 7:03 [PATCH v4 0/9] Unify sub-device state access functions Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 1/9] media: v4l: subdev: Store the sub-device in the sub-device state Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 2/9] media: v4l: subdev: Also return pads array information on stream functions Sakari Ailus
2023-10-26 7:11 ` Hans Verkuil
2023-10-26 7:39 ` Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 3/9] media: v4l: subdev: Rename sub-device state information access functions Sakari Ailus
2023-10-26 7:26 ` Hans Verkuil
2023-10-26 8:25 ` Sakari Ailus
2023-10-26 9:51 ` Laurent Pinchart
2023-10-26 10:10 ` Sakari Ailus
2023-10-26 13:40 ` Laurent Pinchart
2023-10-26 7:03 ` [PATCH v4 4/9] media: v4l: subdev: v4l2_subdev_state_get_format always returns format now Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 5/9] media: v4l: subdev: Make stream argument optional in state access functions Sakari Ailus
2023-10-26 13:49 ` Laurent Pinchart
2023-10-27 9:06 ` Sakari Ailus
2023-10-27 9:10 ` Laurent Pinchart
2023-10-27 9:12 ` Sakari Ailus
2023-10-27 9:14 ` Laurent Pinchart
2023-10-27 9:21 ` Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 6/9] media: v4l: subdev: Switch to stream-aware state functions Sakari Ailus
2023-10-26 7:03 ` [PATCH v4 7/9] media: v4l: subdev: Remove stream-unaware sub-device state access Sakari Ailus
2023-10-26 13:54 ` Laurent Pinchart
2023-10-26 7:03 ` [PATCH v4 8/9] media: v4l: subdev: Return NULL from pad access functions on error Sakari Ailus
2023-10-26 7:35 ` Hans Verkuil
2023-10-26 7:43 ` Sakari Ailus
2023-10-26 13:55 ` Laurent Pinchart
2023-10-26 7:03 ` Sakari Ailus [this message]
2023-10-26 7:36 ` [PATCH v4 9/9] media: v4l: subdev: Warn on stream when accessing stream-unaware data Hans Verkuil
2023-10-26 7:40 ` Sakari Ailus
2023-10-26 14:20 ` Laurent Pinchart
2023-10-26 17:50 ` Sakari Ailus
2023-10-26 18:09 ` Laurent Pinchart
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