drm/radeon/kms: fix segfault in pm rework

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 0a4ec1ed02c00ac268aed4bce842d45238c78eff..fecd705a1a5f4fa66b0bfe6e0abade805040173b 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -2008,14 +2008,14 @@ static int radeon_atombios_parse_power_table_1_3(struct radeon_device *rdev)
                return state_index;
        /* last mode is usually default, array is low to high */
        for (i = 0; i < num_modes; i++) {
+               rdev->pm.power_state[state_index].clock_info =
+                       kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
+               if (!rdev->pm.power_state[state_index].clock_info)
+                       return state_index;
+               rdev->pm.power_state[state_index].num_clock_modes = 1;
                rdev->pm.power_state[state_index].clock_info[0].voltage.type = VOLTAGE_NONE;
                switch (frev) {
                case 1:
-                       rdev->pm.power_state[state_index].clock_info =
-                               kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
-                       if (!rdev->pm.power_state[state_index].clock_info)
-                               return state_index;
-                       rdev->pm.power_state[state_index].num_clock_modes = 1;
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le16_to_cpu(power_info->info.asPowerPlayInfo[i].usMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
@@ -2051,11 +2051,6 @@ static int radeon_atombios_parse_power_table_1_3(struct radeon_device *rdev)
                        state_index++;
                        break;
                case 2:
-                       rdev->pm.power_state[state_index].clock_info =
-                               kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
-                       if (!rdev->pm.power_state[state_index].clock_info)
-                               return state_index;
-                       rdev->pm.power_state[state_index].num_clock_modes = 1;
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le32_to_cpu(power_info->info_2.asPowerPlayInfo[i].ulMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =
@@ -2092,11 +2087,6 @@ static int radeon_atombios_parse_power_table_1_3(struct radeon_device *rdev)
                        state_index++;
                        break;
                case 3:
-                       rdev->pm.power_state[state_index].clock_info =
-                               kzalloc(sizeof(struct radeon_pm_clock_info) * 1, GFP_KERNEL);
-                       if (!rdev->pm.power_state[state_index].clock_info)
-                               return state_index;
-                       rdev->pm.power_state[state_index].num_clock_modes = 1;
                        rdev->pm.power_state[state_index].clock_info[0].mclk =
                                le32_to_cpu(power_info->info_3.asPowerPlayInfo[i].ulMemoryClock);
                        rdev->pm.power_state[state_index].clock_info[0].sclk =