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drm/amd/pp: Avoid divide-by-zero in fan_ctrl_set_fan_speed_rpm
authorRex Zhu <Rex.Zhu@amd.com>
Thu, 20 Sep 2018 03:50:26 +0000 (11:50 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 9 Oct 2018 22:00:25 +0000 (17:00 -0500)
commitfbe8518f03a02cad07e6660a4c0149ee8e824cfc
treeb4e6003fff6f0dfa55d57059e496d9d249839d0atree | snapshot
parent707460955637497e4867a71fde5933af92adad7ccommit | diff
drm/amd/pp: Avoid divide-by-zero in fan_ctrl_set_fan_speed_rpm

The minRPM speed maybe equal to zero. so need to check
input RPM not equal to 0, otherwise cause divide-by-zero driver crash.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_thermal.c diff | blob | history
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_thermal.c diff | blob | history
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