diff options
| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-01-08 02:40:20 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-13 21:50:18 (GMT) |
| commit | bcfd15c02eebeb514eea6abfd9c41cd98aa4db46 (patch) | |
| tree | 234f08629812c94ccb83d2716b56e8e95e0754d5 /drivers/gpu/drm/radeon/radeon_pm.c | |
| parent | 776c716b30696438465865697bba1ad8ba479e99 (diff) | |
| download | linux-fsl-qoriq-bcfd15c02eebeb514eea6abfd9c41cd98aa4db46.tar.xz | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
| -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 4f6b7fc..a0ec4bb 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -1024,8 +1024,10 @@ static void radeon_pm_resume_old(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; |