| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.12 071/118] media: saa7164: fix return value check in saa7164_initdev() | Date | Wed, 18 Dec 2013 13:11:48 -0800 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
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 <yongjun_wei@trendmicro.com.cn> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/media/pci/saa7164/saa7164-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- 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_de 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 */
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