[PATCH] drivers/video/s3fb.c: fix a use-before-check

NULL checks should be before the first dereference.

Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Ondrej Zajicek <santiago@crfreenet.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/s3fb.c

@@ -1000,11 +1000,12 @@ err_enable_device:
 static void __devexit s3_pci_remove(struct pci_dev *dev)
 {
 	struct fb_info *info = pci_get_drvdata(dev);
-	struct s3fb_info *par = info->par;
 
 	if (info) {
 
 #ifdef CONFIG_MTRR
+		struct s3fb_info *par = info->par;
+
 		if (par->mtrr_reg >= 0) {
 			mtrr_del(par->mtrr_reg, 0, 0);
 			par->mtrr_reg = -1;