On Mon Feb 3 11:55:43 2025 +0000, Ricardo Ribalda wrote:
> If nothing needs to be done. Exit early.
>
> Reviewed-by: Hans de Goede <[email protected]>
> Tested-by: Yunke Cao <[email protected]>
> Signed-off-by: Ricardo Ribalda <[email protected]>
> Link:
> https://lore.kernel.org/r/[email protected]
> Signed-off-by: Hans de Goede <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/usb/uvc/uvc_v4l2.c | 6 ++++++
1 file changed, 6 insertions(+)
---
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 9493ab375f07..4025811fb9e7 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -1030,6 +1030,9 @@ static int uvc_ioctl_g_ext_ctrls(struct file *file, void
*fh,
u32 which;
int ret;
+ if (!ctrls->count)
+ return 0;
+
switch (ctrls->which) {
case V4L2_CTRL_WHICH_DEF_VAL:
case V4L2_CTRL_WHICH_CUR_VAL:
@@ -1070,6 +1073,9 @@ static int uvc_ioctl_s_try_ext_ctrls(struct uvc_fh
*handle,
unsigned int i;
int ret;
+ if (!ctrls->count)
+ return 0;
+
ret = uvc_ctrl_check_access(chain, ctrls, ioctl);
if (ret < 0)
return ret;
