V4L/DVB (9514): cx18: Fix PLL freq computation for debug display

cx18: Fix PLL freq computation for debug display.
The code to compute the PLL freq from register values was storing an
intermediate 56 bit result in a 32 bit type, causing a nonsense value to
be displayed.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c
index 5c079e35e611..518bd701d393 100644
--- a/drivers/media/video/cx18/cx18-av-core.c
+++ b/drivers/media/video/cx18/cx18-av-core.c
@@ -273,10 +273,9 @@ void cx18_av_std_setup(struct cx18 *cx)
                         pll_int, pll_frac, pll_post);
 
         if (pll_post) {
-                int fin, fsc;
-                int pll = 28636363L * ((((u64)pll_int) << 25) + pll_frac);
+                int fin, fsc, pll;
 
-                pll >>= 25;
+                pll = (28636364L * ((((u64)pll_int) << 25) + pll_frac)) >> 25;
                 pll /= pll_post;
                 CX18_DEBUG_INFO("PLL = %d.%06d MHz\n",
                                         pll / 1000000, pll % 1000000);