From c34cad873ff38096f8710ab318b486d4e40d4293 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 25 Oct 2013 06:34:03 -0300 Subject: [PATCH] media: saa7164: fix return value check in saa7164_initdev() commit 89f4d45b2752df5d222b5f63919ce59e2d8afaf4 upstream. 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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab [bwh: Backported to 3.2: adjust filename] Signed-off-by: Ben Hutchings Cc: Jianguo Wu Signed-off-by: Greg Kroah-Hartman --- drivers/media/video/saa7164/saa7164-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/saa7164/saa7164-core.c b/drivers/media/video/saa7164/saa7164-core.c index 3b7d7b4..8f3c47e 100644 --- a/drivers/media/video/saa7164/saa7164-core.c +++ b/drivers/media/video/saa7164/saa7164-core.c @@ -1386,9 +1386,11 @@ static int __devinit 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 */ -- 2.7.4