[PATCH] media: gspca: null check create_singlethread_workqueue

[Navid Emamdoost]

In sd_start the return value of create_singlethread_workqueue needs
null check.

Signed-off-by: Navid Emamdoost <navid.emamdo...@gmail.com>
---
 drivers/media/usb/gspca/sq905c.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/usb/gspca/sq905c.c b/drivers/media/usb/gspca/sq905c.c
index 3d7f6dcdd7a8..6ca947aef298 100644
--- a/drivers/media/usb/gspca/sq905c.c
+++ b/drivers/media/usb/gspca/sq905c.c
@@ -276,6 +276,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
        }
        /* Start the workqueue function to do the streaming */
        dev->work_thread = create_singlethread_workqueue(MODULE_NAME);
+       if (!dev->work_thread)
+               return -ENOMEM;
+
        queue_work(dev->work_thread, &dev->work_struct);
 
        return 0;
-- 
2.17.1