Ho Karol, Thank you for the patch.
On Sun, Dec 15, 2024 at 01:53:55PM +0100, Karol Przybylski wrote: > This patch fixes a potential integer overflow in the zynqmp_dp_rate_get() > > The issue comes up when the expression > drm_dp_bw_code_to_link_rate(dp->test.bw_code) * 10000 is evaluated using > 32-bit > Now the constant is a compatible 64-bit type. > > Resolves coverity issues: CID 1636340 and CID 1635811 > > Cc: [email protected] > Fixes: 28edaacb821c6 ("drm: zynqmp_dp: Add debugfs interface for compliance > testing") > Signed-off-by: Karol Przybylski <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> > --- > Changes from previous versions: > Added Fixes tag > Added Cc for stable kernel version > Fixed formatting > > drivers/gpu/drm/xlnx/zynqmp_dp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c > b/drivers/gpu/drm/xlnx/zynqmp_dp.c > index 25c5dc61ee88..56a261a40ea3 100644 > --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c > +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c > @@ -2190,7 +2190,7 @@ static int zynqmp_dp_rate_get(void *data, u64 *val) > struct zynqmp_dp *dp = data; > > mutex_lock(&dp->lock); > - *val = drm_dp_bw_code_to_link_rate(dp->test.bw_code) * 10000; > + *val = drm_dp_bw_code_to_link_rate(dp->test.bw_code) * 10000ULL; > mutex_unlock(&dp->lock); > return 0; > } -- Regards, Laurent Pinchart
