diff options
| author | Kangjie Lu <kjlu@umn.edu> | 2019-03-08 22:36:27 -0600 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-03-25 09:33:42 +0100 |
| commit | 208c6e8cff1b96eca401adbd544ac00133df9e90 (patch) | |
| tree | dbf483bcd997ba7a356fb521d70fd867a0ffc616 | |
| parent | 60e6ecfb616f0d2b927ce2e47dbd0e50c8c9253e (diff) | |
drm: vkms: check status of alloc_ordered_workqueue
alloc_ordered_workqueue may fail and return NULL.
The fix returns ENOMEM when it fails to avoid potential NULL
pointer dereference.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190309043628.6078-1-kjlu@umn.edu
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_crtc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_crtc.c b/drivers/gpu/drm/vkms/vkms_crtc.c index 8a9aeb0a9ea8..bb66dbcd5e3f 100644 --- a/drivers/gpu/drm/vkms/vkms_crtc.c +++ b/drivers/gpu/drm/vkms/vkms_crtc.c @@ -219,6 +219,8 @@ int vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, spin_lock_init(&vkms_out->state_lock); vkms_out->crc_workq = alloc_ordered_workqueue("vkms_crc_workq", 0); + if (!vkms_out->crc_workq) + return -ENOMEM; return ret; } |