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drm-misc-fixes for v5.9: 

- Single null pointer deref fix for dma-buf.
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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
This commit is contained in:
Dave Airlie 2020-09-25 11:28:36 +10:00
parent f3231a02aa 19a508bd1a
commit ba78755e0c
1 changed files with 2 additions and 0 deletions
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2
drivers/dma-buf/dma-buf.c
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@ -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);