diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 2 |
3 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c index fc1297fecc62..d4b954b22441 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c @@ -1267,6 +1267,9 @@ static int arcturus_set_fan_speed_rpm(struct smu_context *smu, uint32_t crystal_clock_freq = 2500; uint32_t tach_period; + if (!speed || speed > UINT_MAX/8) + return -EINVAL; + tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed); WREG32_SOC15(THM, 0, mmCG_TACH_CTRL_ARCT, REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL_ARCT), diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c index 16fcd9dcd202..6c61e87359dd 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c @@ -1199,7 +1199,7 @@ int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu, uint32_t crystal_clock_freq = 2500; uint32_t tach_period; - if (speed == 0) + if (!speed || speed > UINT_MAX/8) return -EINVAL; /* * To prevent from possible overheat, some ASICs may have requirement diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c index 2024a85fa11b..4f78c84da780 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c @@ -1228,7 +1228,7 @@ int smu_v13_0_set_fan_speed_rpm(struct smu_context *smu, uint32_t tach_period; int ret; - if (!speed) + if (!speed || speed > UINT_MAX/8) return -EINVAL; ret = smu_v13_0_auto_fan_control(smu, 0); |