Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4376eee9 authored by Alexander Müller's avatar Alexander Müller Committed by Dave Airlie
Browse files

drm/radeon/kms/atom: fix possible segfault in pm setup 

If we end up with no power states, don't look up
current vddc.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44130



agd5f: fix patch formatting

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 115e8e70

drivers/gpu/drm/radeon/radeon_atombios.c

+5 −1
Original line number Diff line number Diff line
@@ -2560,7 +2560,11 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev) 


	rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;

	rdev->pm.current_clock_mode_index = 0;

	rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;

	if (rdev->pm.default_power_state_index >= 0)

		rdev->pm.current_vddc =

			rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;

	else

		rdev->pm.current_vddc = 0;

}



void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)