[PATCH] gspca: correctly checked failed allocation

[Insu Yun]

create_singlethread_workqueue can be failed in memory pressue.
So, check return value and return -ENOMEM

Signed-off-by: Insu Yun <wuninsu@xxxxxxxxx>
---
 drivers/media/usb/gspca/sq905.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/usb/gspca/sq905.c b/drivers/media/usb/gspca/sq905.c
index a7ae0ec..b1c25d9a 100644
--- a/drivers/media/usb/gspca/sq905.c
+++ b/drivers/media/usb/gspca/sq905.c
@@ -392,6 +392,8 @@ 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;
-- 
1.9.1

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