Thread (2 messages) flat view 2 messages, 2 authors, 2011-03-29
STALE5660d

[patch] backlight/pcf50633: check for NULL consistently in

From: Dan Carpenter <hidden>
Date: 2011-03-29 03:20:20
Also in: kernel-janitors
Subsystem: backlight class/subsystem, framebuffer layer, the rest · Maintainers: Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds

We checked "pdata" for NULL at the start of the function so we should
check it here as well.

Signed-off-by: Dan Carpenter <redacted>
---
Compile tested only.  Please review.
diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index ef5628d..0fe934f 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -136,7 +136,9 @@ static int __devinit pcf50633_bl_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pcf_bl);
 
-	pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDDIM, pdata->ramp_time);
+	if (pdata)
+		pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDDIM,
+					pdata->ramp_time);
 
 	/* Should be different from bl_props.brightness, so we do not exit
 	 * update_status early the first time it's called */
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