[PATCH] video: fbdev: s3fb.c: Fix for possible null pointer dereference

DORMANTno replies

From: Rickard Strandqvist <hidden>
Date: 2014-05-20 21:36:45
Also in: lkml
Subsystem: framebuffer layer, the rest · Maintainers: Helge Deller, Linus Torvalds

There is otherwise a risk of a possible null pointer dereference.

Was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <redacted>
---
 drivers/video/fbdev/s3fb.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c
index 9a3f8f1..c43b969 100644
--- a/drivers/video/fbdev/s3fb.c
+++ b/drivers/video/fbdev/s3fb.c
@@ -1401,9 +1401,10 @@ err_enable_device:
 static void s3_pci_remove(struct pci_dev *dev)
 {
 	struct fb_info *info = pci_get_drvdata(dev);
-	struct s3fb_info __maybe_unused *par = info->par;
+	struct s3fb_info __maybe_unused *par;
 
 	if (info) {
+		par = info->par;
 
 #ifdef CONFIG_MTRR
 		if (par->mtrr_reg >= 0) {
-- 
1.7.10.4
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