diff options
| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-01-08 11:40:20 +0900 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-04-02 00:58:42 +0100 |
| commit | 3d42de37001784d4e00c2e2cd6e4fdb983a76e21 (patch) | |
| tree | 2933717bb1f248b29e09a2b0f54e66f1cee60869 /drivers/gpu | |
| parent | 09c18c601e918a88c431cf4e540eafa5bc25fcc1 (diff) | |
radeon/pm: Guard access to rdev->pm.power_state array
commit 370169516e736edad3b3c5aa49858058f8b55195 upstream.
It's never allocated on systems without an ATOMBIOS or COMBIOS ROM.
Should fix an oops I encountered while resetting the GPU after a lockup
on my PowerBook with an RV350.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index d58eccbd7f24..b0a0ee458563 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -573,8 +573,10 @@ void radeon_pm_resume(struct radeon_device *rdev) rdev->pm.current_clock_mode_index = 0; rdev->pm.current_sclk = rdev->pm.default_sclk; rdev->pm.current_mclk = rdev->pm.default_mclk; - rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; - rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci; + if (rdev->pm.power_state) { + rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; + rdev->pm.current_vddci = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.vddci; + } if (rdev->pm.pm_method == PM_METHOD_DYNPM && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) { rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE; |