From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Yongjun Date: Sat, 13 Aug 2016 01:26:26 +0000 Subject: [PATCH -next] video: ARM CLCD: fix return value check in versatile_clcd_init_panel() Message-Id: <1471051586-26189-1-git-send-email-weiyj.lk@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org In case of error, the function syscon_node_to_regmap() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: 25348160e9a4 ("video: ARM CLCD: add special panel hook for Versatiles") Signed-off-by: Wei Yongjun --- drivers/video/fbdev/amba-clcd-versatile.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/amba-clcd-versatile.c b/drivers/video/fbdev/amba-clcd-versatile.c index 9a90817..56161f9 100644 --- a/drivers/video/fbdev/amba-clcd-versatile.c +++ b/drivers/video/fbdev/amba-clcd-versatile.c @@ -528,9 +528,9 @@ int versatile_clcd_init_panel(struct clcd_fb *fb, versatile_clcd_type = (enum versatile_clcd)clcd_id->data; map = syscon_node_to_regmap(np); - if (!map) { + if (IS_ERR(map)) { dev_err(dev, "no Versatile syscon regmap\n"); - return -ENODEV; + return PTR_ERR(map); } switch (versatile_clcd_type) {