mbxfb: fix incorrect argument type

Fix wrong pointer type passed into the dev_dbg() function.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Mike Rapoport <mike@compulab.co.il>
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/mbx/mbxfb.c

@@ -889,7 +889,7 @@ static int __devinit mbxfb_probe(struct platform_device *dev)
 	struct mbxfb_info *mfbi;
 	struct mbxfb_platform_data *pdata;
 
-	dev_dbg(dev, "mbxfb_probe\n");
+	dev_dbg(&dev->dev, "mbxfb_probe\n");
 
 	pdata = dev->dev.platform_data;
 	if (!pdata) {