[PATCH] drivers/md/raid6algos.c: fix a NULL dereference

This patch fixes a NULL dereference spotted by the Coverity checker.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/md/raid6algos.c

@@ -139,15 +139,14 @@ int __init raid6_select_algo(void)
 		}
 	}
 
-	if ( best )
+	if (best) {
 		printk("raid6: using algorithm %s (%ld MB/s)\n",
 		       best->name,
 		       (bestperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
-	else
+		raid6_call = *best;
+	} else
 		printk("raid6: Yikes!  No algorithm found!\n");
 
-	raid6_call = *best;
-
 	free_pages((unsigned long)syndromes, 1);
 
 	return best ? 0 : -EINVAL;