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* [PATCH]  Fix Null point in video/lcd/brightness
@ 2005-11-19 14:32 Yu Luming
  0 siblings, 0 replies; only message in thread
From: Yu Luming @ 2005-11-19 14:32 UTC (permalink / raw)
  To: akpm-3NddpPZAyC0, acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f,
	len.brown-ral2JQCrhuEAvxtiuMwx3w, trenn-l3A5Bk7waGM,
	nacc-r/Jw6+rmf7HQT0dZR+AlfA

 Fix Null point in video/lcd/brightness
http://bugzilla.kernel.org/show_bug.cgi?id=5571

Signed-off-by: Luming Yu
Cc: "Brown, Len"
Signed-off-by: Thomas Renninger <trenn-l3A5Bk7waGM@public.gmane.org>
Signed-off-by: Nishanth Aravamudan <nacc-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
---
 video.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/video.c.orig	2005-10-28 02:02:08.000000000 +0200
+++ a/drivers/acpi/video.c	2005-11-04 14:53:25.000000000 +0100
@@ -813,7 +813,7 @@
 
 	ACPI_FUNCTION_TRACE("acpi_video_device_write_brightness");
 
-	if (!dev || count + 1 > sizeof str)
+	if (!dev || !dev->brightness || count + 1 > sizeof str)
 		return_VALUE(-EINVAL);
 
 	if (copy_from_user(str, buffer, count))



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2005-11-19 14:32 [PATCH] Fix Null point in video/lcd/brightness Yu Luming

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