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| author | Dave Airlie <airlied@redhat.com> | 2020-09-25 11:28:36 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-09-25 11:30:00 +1000 |
| commit | ba78755e0c25dec4151880a14f523e929b2052c6 (patch) | |
| tree | 4df02edf1dcfd85ccb5486ebba69e56629edbdc3 | |
| parent | f3231a02aabeccb09348b955423a99d7919566db (diff) | |
| parent | 19a508bd1ad8e444de86873bf2f2b2ab8edd6552 (diff) | |
| download | lwn-ba78755e0c25dec4151880a14f523e929b2052c6.tar.gz lwn-ba78755e0c25dec4151880a14f523e929b2052c6.zip | |
Merge tag 'drm-misc-fixes-2020-09-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.9:
- Single null pointer deref fix for dma-buf.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4106c21e-f52c-4c05-6cdb-daa743bb8617@linux.intel.com
| -rw-r--r-- | drivers/dma-buf/dma-buf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 58564d82a3a2..844967f98866 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -59,6 +59,8 @@ static void dma_buf_release(struct dentry *dentry) struct dma_buf *dmabuf; dmabuf = dentry->d_fsdata; + if (unlikely(!dmabuf)) + return; BUG_ON(dmabuf->vmapping_counter); |