V4L/DVB (7291): em28xx: correct use of and fix

be less silly while we're there.
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/em28xx/em28xx-core.c

@@ -267,7 +267,7 @@ static int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 *val)
 	for (i = 0; i < 10; i++) {
 		if ((ret = em28xx_read_reg(dev, AC97BUSY_REG)) < 0)
 			return ret;
-		if (!(((u8)ret) & 0x01))
+		if (!(ret & 0x01))
 			return 0;
 		msleep(5);
 	}