[2.6 patch] md/bitmap.c:bitmap_mask_state(): fix inconsequent NULL checking

[Adrian Bunk <bunk@stusta.de>]

We dereference bitmap both one line above and one line below this check 
rendering this check quite useless.

Spotted by the Coverity checker.


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.16-rc5-mm3-full/drivers/md/bitmap.c.old	2006-03-10 19:02:38.000000000 +0100
+++ linux-2.6.16-rc5-mm3-full/drivers/md/bitmap.c	2006-03-10 19:02:54.000000000 +0100
@@ -546,7 +546,7 @@ static void bitmap_mask_state(struct bit
 	unsigned long flags;
 
 	spin_lock_irqsave(&bitmap->lock, flags);
-	if (!bitmap || !bitmap->sb_page) { /* can't set the state */
+	if (!bitmap->sb_page) { /* can't set the state */
 		spin_unlock_irqrestore(&bitmap->lock, flags);
 		return;
 	}
-
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