V4L/DVB: Fix test in copy_reg_bits()

The reg_pair2[j].reg was tested twice.

Cc: <stable@kernel.org>
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/mxl5007t.c

@@ -196,7 +196,7 @@ static void copy_reg_bits(struct reg_pair_t *reg_pair1,
 	i = j = 0;
 
 	while (reg_pair1[i].reg || reg_pair1[i].val) {
-		while (reg_pair2[j].reg || reg_pair2[j].reg) {
+		while (reg_pair2[j].reg || reg_pair2[j].val) {
 			if (reg_pair1[i].reg != reg_pair2[j].reg) {
 				j++;
 				continue;