V4L/DVB (4995): Vivi: fix kthread_run() error check

The return value of kthread_run() should be checked by IS_ERR().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 3cead24a36c123fa3d9386c250d2b3d47f65a2f2..bacb311b4f24b6d6f645ac716d3ffc1be37902a3 100644 (file)
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -535,9 +535,9 @@ static int vivi_start_thread(struct vivi_dmaqueue  *dma_q)
 
        dma_q->kthread = kthread_run(vivi_thread, dma_q, "vivi");
 
-       if (dma_q->kthread == NULL) {
+       if (IS_ERR(dma_q->kthread)) {
                printk(KERN_ERR "vivi: kernel_thread() failed\n");
-               return -EINVAL;
+               return PTR_ERR(dma_q->kthread);
        }
        dprintk(1,"returning from %s\n",__FUNCTION__);
        return 0;