V4L/DVB (5871): Conexant 2388x: check for kthread_run

The patch adds checking of kthread_run return code and issues a message
if it fails.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 98fa35421bdd..06b233a7b20b 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -1881,8 +1881,14 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
         mutex_unlock(&core->lock);
 
         /* start tvaudio thread */
-        if (core->tuner_type != TUNER_ABSENT)
+        if (core->tuner_type != TUNER_ABSENT) {
                 core->kthread = kthread_run(cx88_audio_thread, core, "cx88 tvaudio");
+                if (IS_ERR(core->kthread)) {
+                        err = PTR_ERR(core->kthread);
+                        printk(KERN_ERR "Failed to create cx88 audio thread, err=%d\n",
+                               err);
+                }
+        }
         return 0;
 
 fail_unreg: