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video: s3c-fb: fix possible division by zero in s3c_fb_calc_pixclk
author
Jingoo Han
<jg1.han@samsung.com>
Mon, 11 Jun 2012 02:27:27 +0000
(11:27 +0900)
committer
Florian Tobias Schandinat
<FlorianSchandinat@gmx.de>
Wed, 13 Jun 2012 17:34:16 +0000
(17:34 +0000)
Divider value can be zero and it makes division by zero
from debug message in s3c_fb_calc_pixclk; therefore, it
should be fixed.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
drivers/video/s3c-fb.c
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diff --git
a/drivers/video/s3c-fb.c
b/drivers/video/s3c-fb.c
index b5c29399a5ee3fc83e14200e4442dab54c6a6970..ea7b661e7229039c29770c50414f4846e6865192 100644
(file)
--- a/
drivers/video/s3c-fb.c
+++ b/
drivers/video/s3c-fb.c
@@
-361,7
+361,7
@@
static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk)
result = (unsigned int)tmp / 1000;
dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n",
- pixclk, clk, result,
clk / result
);
+ pixclk, clk, result,
result ? clk / result : clk
);
return result;
}