From: Erik Kurzinger Date: Fri, 19 Jan 2024 16:32:07 +0000 (-0800) Subject: drm/syncobj: reject invalid flags in drm_syncobj_find_fence X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=18226ba52159257d4c2f777a168cc09adb3c1ac0;p=linux.git drm/syncobj: reject invalid flags in drm_syncobj_find_fence The only flag that is meaningful to drm_syncobj_find_fence is DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT. It should return -EINVAL for any other flag bits. Signed-off-by: Erik Kurzinger Signed-off-by: Simon Ser Reviewed-by: Daniel Vetter Acked-by: Simon Ser Link: https://patchwork.freedesktop.org/patch/msgid/20240119163208.3723457-2-ekurzinger@nvidia.com --- diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c index 56b0677acfa3d..fada77f04a8c3 100644 --- a/drivers/gpu/drm/drm_syncobj.c +++ b/drivers/gpu/drm/drm_syncobj.c @@ -441,6 +441,9 @@ int drm_syncobj_find_fence(struct drm_file *file_private, u64 timeout = nsecs_to_jiffies64(DRM_SYNCOBJ_WAIT_FOR_SUBMIT_TIMEOUT); int ret; + if (flags & ~DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) + return -EINVAL; + if (!syncobj) return -ENOENT;