Attachment 54978 Details for Bug 44130 – cleaned up patch

[patch] cleaned up patch

0001-drm-radeon-kms-atom-fix-possible-segfault-in-pm-setu.patch (text/plain), 1.40 KB, created by Alex Deucher on 2011-12-30 09:57:11 UTC

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Creator: Alex Deucher

Created: 2011-12-30 09:57:11 UTC

Size: 1.40 KB

patch

obsolete

>From 953ae6239801b656f2b9b69a8490c69647a9260b Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Alexander=20M=C3=BCller?= <serveralex@gmail.com>
>Date: Fri, 30 Dec 2011 12:46:28 -0500
>Subject: [PATCH] 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: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/radeon_atombios.c |    6 +++++-
> 1 files changed, 5 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
>index dc7c751..a9ce094 100644
>--- a/drivers/gpu/drm/radeon/radeon_atombios.c
>+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
>@@ -2595,7 +2595,11 @@ 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)
>-- 
>1.7.3.4
>

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