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| author | Takashi Iwai <tiwai@suse.de> | 2014-12-04 11:56:42 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-04 13:28:42 +0100 |
| commit | a0a0bde32a4668656cdffac677032a101c170c6b (patch) | |
| tree | 379301f4c752b825b23d48ee9ced899337c4225b /drivers/gpu/drm/drm_fops.c | |
| parent | e2beb6cd5d0f6f0f6e71fe200a674932194a8e84 (diff) | |
| download | linux-a0a0bde32a4668656cdffac677032a101c170c6b.tar.gz linux-a0a0bde32a4668656cdffac677032a101c170c6b.tar.bz2 linux-a0a0bde32a4668656cdffac677032a101c170c6b.zip | |
drm: Fix memory leak at error path of drm_read()
Note that the read manpages explicitly states that the read position
is undefined on error. Since EFAULT is just a userspace bug we are
therefore fine with just dropping the event on the floor.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[danvet: Add note that just dropping the event is ok.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index 91e1105f2800..0b9514b6cd64 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -527,6 +527,7 @@ ssize_t drm_read(struct file *filp, char __user *buffer, if (copy_to_user(buffer + total, e->event, e->event->length)) { total = -EFAULT; + e->destroy(e); break; } |