diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-06-03 17:40:55 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2018-07-31 01:03:47 +0300 |
| commit | 8456b99c16d193c4c3b7df305cf431e027f0189c (patch) | |
| tree | 0931c9242fd0a17e8fe34fbad571a702950797fc | |
| parent | acb1872577b346bd15ab3a3f8dff780d6cca4b70 (diff) | |
| download | linux-8456b99c16d193c4c3b7df305cf431e027f0189c.tar.xz | |
udl-kms: change down_interruptible to down
If we leave urbs around, it causes not only leak, but also memory
corruption. This patch fixes the function udl_free_urb_list, so that it
always waits for all urbs that are in progress.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/udl/udl_main.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index d518de8f496b..1239decd46ff 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -170,18 +170,13 @@ static void udl_free_urb_list(struct drm_device *dev) struct list_head *node; struct urb_node *unode; struct urb *urb; - int ret; unsigned long flags; DRM_DEBUG("Waiting for completes and freeing all render urbs\n"); /* keep waiting and freeing, until we've got 'em all */ while (count--) { - - /* Getting interrupted means a leak, but ok at shutdown*/ - ret = down_interruptible(&udl->urbs.limit_sem); - if (ret) - break; + down(&udl->urbs.limit_sem); spin_lock_irqsave(&udl->urbs.lock, flags); |