fbdev: sh_mobile_lcdc: checking NULL instead of IS_ERR()

backlight_device_register() returns an ERR_PTR.  It doesn't return NULL.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index bf2629f83f40..757665bc500f 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -1088,8 +1088,9 @@ static struct backlight_device *sh_mobile_lcdc_bl_probe(struct device *parent,
 
         bl = backlight_device_register(ch->cfg.bl_info.name, parent, ch,
                                        &sh_mobile_lcdc_bl_ops, NULL);
-        if (!bl) {
-                dev_err(parent, "unable to register backlight device\n");
+        if (IS_ERR(bl)) {
+                dev_err(parent, "unable to register backlight device: %ld\n",
+                        PTR_ERR(bl));
                 return NULL;
         }