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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2014-09-25 16:22:00 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-12-23 13:43:54 +0300 |
| commit | aadec012eabf0e5147103cfd2ffde27e5aad65e2 (patch) | |
| tree | be00b778f3a96ecd32a92892cb6cf949de4e2c00 /drivers/media/platform/omap3isp | |
| parent | 584ca0252abf31388cacbdb3018aab2c70362d8d (diff) | |
| download | linux-aadec012eabf0e5147103cfd2ffde27e5aad65e2.tar.xz | |
[media] omap3isp: Fix division by 0
If the requested clock rate passed to the XCLK set_rate or round_rate
operation is 0, the driver will try to divide by 0. Fix this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/omap3isp')
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 51c2129bdcc6..deca80903c3a 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -220,6 +220,9 @@ static u32 isp_xclk_calc_divider(unsigned long *rate, unsigned long parent_rate) return ISPTCTRL_CTRL_DIV_BYPASS; } + if (*rate == 0) + *rate = 1; + divider = DIV_ROUND_CLOSEST(parent_rate, *rate); if (divider >= ISPTCTRL_CTRL_DIV_BYPASS) divider = ISPTCTRL_CTRL_DIV_BYPASS - 1; |