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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2018-01-29 19:32:01 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-02-23 03:03:32 -0500 |
| commit | 36e49ffb978ef7284ae235b915a7bd6713aa20de (patch) | |
| tree | f3d2abd743f5a868dbb3336d58c914e8fe15eaa3 /drivers/media/i2c/ov9650.c | |
| parent | b1f5d0ae930d92bfddb74e99324542456083141a (diff) | |
| download | linux-36e49ffb978ef7284ae235b915a7bd6713aa20de.tar.bz2 | |
media: i2c: ov9650: fix potential integer overflow in __ov965x_set_frame_interval
Cast fi->interval.numerator to u64 in order to avoid a potential integer
overflow. This variable is being used in a context that expects an
expression of type u64.
Addresses-Coverity-ID: 1324146 ("Unintentional integer overflow")
[Sakari Ailus: use do_div() to make this work on 32-bit systems]
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/i2c/ov9650.c')
| -rw-r--r-- | drivers/media/i2c/ov9650.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/i2c/ov9650.c b/drivers/media/i2c/ov9650.c index bfd90162a297..5bea31cd41aa 100644 --- a/drivers/media/i2c/ov9650.c +++ b/drivers/media/i2c/ov9650.c @@ -1136,8 +1136,8 @@ static int __ov965x_set_frame_interval(struct ov965x *ov965x, if (fi->interval.denominator == 0) return -EINVAL; - req_int = (u64)(fi->interval.numerator * 10000) / - fi->interval.denominator; + req_int = (u64)fi->interval.numerator * 10000; + do_div(req_int, fi->interval.denominator); for (i = 0; i < ARRAY_SIZE(ov965x_intervals); i++) { const struct ov965x_interval *iv = &ov965x_intervals[i]; |