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 <mpato...@redhat.com>
Cc: sta...@vger.kernel.org
---
drivers/gpu/drm/udl/udl_main.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
Index: linux-4.16.12/drivers/gpu/drm/udl/udl_main.c
===================================================================
--- linux-4.16.12.orig/drivers/gpu/drm/udl/udl_main.c 2018-05-31
10:23:42.000000000 +0200
+++ linux-4.16.12/drivers/gpu/drm/udl/udl_main.c 2018-05-31
10:28:11.000000000 +0200
@@ -170,18 +170,13 @@ static void udl_free_urb_list(struct drm
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);
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
