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authorSakari Ailus <sakari.ailus@linux.intel.com>2024-04-10 11:58:44 +0200
committerHans Verkuil <hverkuil-cisco@xs4all.nl>2024-04-22 11:41:04 +0200
commitf2bf6cd8f44781349620e30a0af8987fe9af008f (patch)
treed2e790e3e5ba190e185271f00054f3870f12ef46 /drivers/media/v4l2-core
parentmedia: ti: j721e-csi2rx: Fix races while restarting DMA (diff)
downloadlinux-f2bf6cd8f44781349620e30a0af8987fe9af008f.tar.xz
linux-f2bf6cd8f44781349620e30a0af8987fe9af008f.zip
media: v4l: Don't turn on privacy LED if streamon fails
Turn on the privacy LED only if streamon succeeds. This can be done after enabling streaming on the sensor. Fixes: b6e10ff6c23d ("media: v4l2-core: Make the v4l2-core code enable/disable the privacy LED if present") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media/v4l2-core')
-rw-r--r--drivers/media/v4l2-core/v4l2-subdev.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c
index 0f590c9dc6ca..2d67ec54569a 100644
--- a/drivers/media/v4l2-core/v4l2-subdev.c
+++ b/drivers/media/v4l2-core/v4l2-subdev.c
@@ -442,15 +442,6 @@ static int call_s_stream(struct v4l2_subdev *sd, int enable)
if (WARN_ON(!!sd->enabled_streams == !!enable))
return 0;
-#if IS_REACHABLE(CONFIG_LEDS_CLASS)
- if (!IS_ERR_OR_NULL(sd->privacy_led)) {
- if (enable)
- led_set_brightness(sd->privacy_led,
- sd->privacy_led->max_brightness);
- else
- led_set_brightness(sd->privacy_led, 0);
- }
-#endif
ret = sd->ops->video->s_stream(sd, enable);
if (!enable && ret < 0) {
@@ -458,9 +449,20 @@ static int call_s_stream(struct v4l2_subdev *sd, int enable)
ret = 0;
}
- if (!ret)
+ if (!ret) {
sd->enabled_streams = enable ? BIT(0) : 0;
+#if IS_REACHABLE(CONFIG_LEDS_CLASS)
+ if (!IS_ERR_OR_NULL(sd->privacy_led)) {
+ if (enable)
+ led_set_brightness(sd->privacy_led,
+ sd->privacy_led->max_brightness);
+ else
+ led_set_brightness(sd->privacy_led, 0);
+ }
+#endif
+ }
+
return ret;
}