From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Fri, 1 Jun 2007 07:46:43 +0000 (-0700)
Subject: vt8623fb: arkfb: null pointer dereference fix
X-Git-Tag: v2.6.22-rc4~44
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38d473f99575f57f5911c7c94922fcf0b0a58b8d;p=linux-2.6

vt8623fb: arkfb: null pointer dereference fix

This patch prevents null pointer dereference in arkfb and vt8623fb.

Signed-off-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index ba6fede5c4..8a1b07c743 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -1055,9 +1055,10 @@ err_enable_device:
 static void __devexit ark_pci_remove(struct pci_dev *dev)
 {
 	struct fb_info *info = pci_get_drvdata(dev);
-	struct arkfb_info *par = info->par;
 
 	if (info) {
+		struct arkfb_info *par = info->par;
+
 #ifdef CONFIG_MTRR
 		if (par->mtrr_reg >= 0) {
 			mtrr_del(par->mtrr_reg, 0, 0);
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index 5e9755e464..30c0b94885 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -778,9 +778,10 @@ err_enable_device:
 static void __devexit vt8623_pci_remove(struct pci_dev *dev)
 {
 	struct fb_info *info = pci_get_drvdata(dev);
-	struct vt8623fb_info *par = info->par;
 
 	if (info) {
+		struct vt8623fb_info *par = info->par;
+
 #ifdef CONFIG_MTRR
 		if (par->mtrr_reg >= 0) {
 			mtrr_del(par->mtrr_reg, 0, 0);