| commit | 9543a9c3e2359db4b9576ee2ae3bae5a28e08387 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Fri Jan 31 07:57:39 2020 +0300 |
| committer | Alex Deucher <alexander.deucher@amd.com> | Fri Mar 13 11:52:35 2020 -0400 |
| tree | 04b4d01fa15a3339bec2a81b4e41fcf5603dc02f | |
| parent | 95f247e73f8dd4d3f586b410d07df791ca3b2fef [diff] |
drm/amd/display: Possible divide by zero in set_speed()
If "speed" is zero then we use it as a divisor to find "prescale". It's
better to move the check for zero to the very start of the function.
Fixes: 9eeec26a1339 ("drm/amd/display: Refine i2c frequency calculating sequence")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>