From 89f4d45b2752df5d222b5f63919ce59e2d8afaf4 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 06:34:03 -0300
Subject: [PATCH] [media] saa7164: fix return value check in saa7164_initdev()
In case of error, the function kthread_run() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
drivers/media/pci/saa7164/saa7164-core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index 57ef5456f1e87..1bf06970ca3e8 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1354,9 +1354,11 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
if (fw_debug) {
dev->kthread = kthread_run(saa7164_thread_function, dev,
"saa7164 debug");
- if (!dev->kthread)
+ if (IS_ERR(dev->kthread)) {
+ dev->kthread = NULL;
printk(KERN_ERR "%s() Failed to create "
"debug kernel thread\n", __func__);
+ }
}
} /* != BOARD_UNKNOWN */
--
2.30.2