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drm/panfrost: Only put sync_out if non-NULL

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Dan Carpenter's static analysis tool reported:

drivers/gpu/drm/panfrost/panfrost_drv.c:222 panfrost_ioctl_submit()
error: we previously assumed 'sync_out' could be null (see line 216)

Indeed, sync_out could be NULL if userspace doesn't send a sync object
ID for the out fence.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lists.freedesktop.org/archives/dri-devel/2019-May/217014.html
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509082151.8823-1-tomeu.vizoso@collabora.com
This commit is contained in:
Tomeu Vizoso 2019-05-09 10:21:51 +02:00 committed by Rob Herring
parent eb85d03e01
commit cc2e787ee7
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/panfrost/panfrost_drv.c
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@ -219,7 +219,8 @@ static int panfrost_ioctl_submit(struct drm_device *dev, void *data,
fail_job:
panfrost_job_put(job);
fail_out_sync:
drm_syncobj_put(sync_out);
if (sync_out)
drm_syncobj_put(sync_out);
return ret;
}