From 9ad4c6551b8540054f51b483ce513ccb87f8181b Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Fri, 29 May 2009 20:54:02 -0300 Subject: [PATCH] V4L/DVB (11898): cx18: Perform 64 bit divide so it works for 32 bit systems Thanks to David Ward and Mike Krufky for reporting the problem and debugging this as an unresolved symbol due to a 64 bit divide on a 32 bit system. David Ward provided the content of this patch; Andy Walls only performed some cosmetic edits. Reported-by: David Ward Signed-off-by: David Ward Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-av-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 0b3d840cc2e2..536dedb23ba3 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -447,6 +447,7 @@ void cx18_av_std_setup(struct cx18 *cx) if (pll_post) { int fsc, pll; + u64 tmp; pll = (28636360L * ((((u64)pll_int) << 25) + pll_frac)) >> 25; pll /= pll_post; @@ -459,7 +460,9 @@ void cx18_av_std_setup(struct cx18 *cx) "= %d.%03d\n", src_decimation / 256, ((src_decimation % 256) * 1000) / 256); - fsc = ((((u64)sc) * 28636360)/src_decimation) >> 13L; + tmp = 28636360 * (u64) sc; + do_div(tmp, src_decimation); + fsc = tmp >> 13; CX18_DEBUG_INFO_DEV(sd, "Chroma sub-carrier initial freq = %d.%06d " "MHz\n", fsc / 1000000, fsc % 1000000); -- 2.34.1