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[media] saa7164: fix return value check in saa7164_initdev()

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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>
This commit is contained in:
Wei Yongjun 2013-10-25 06:34:03 -03:00 committed by Mauro Carvalho Chehab
parent f8e1b699a5
commit 89f4d45b27
1 changed files with 3 additions and 1 deletions
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4
drivers/media/pci/saa7164/saa7164-core.c
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@ -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 */