[PATCH 09/22] drm/amd/pm: check specific index for smu13

[Wang, Yang(Kevin)]

[AMD Official Use Only - General]

Reviewed-by: Yang Wang <kevinyang.wang at amd.com>

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Jesse Zhang
Sent: Friday, May 10, 2024 10:50 AM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>; Huang, Tim <Tim.Huang at amd.com>; Zhang, Jesse(Jie) <Jesse.Zhang at amd.com>; Zhang, Jesse(Jie) <Jesse.Zhang at amd.com>
Subject: [PATCH 09/22] drm/amd/pm: check specific index for smu13

Check for specific indexes that may be invalid values.

Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index 051092f1b1b4..7c343dd12a7f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -2336,6 +2336,8 @@ static int smu_v13_0_6_mode2_reset(struct smu_context *smu)

        index = smu_cmn_to_asic_specific_index(smu, CMN2ASIC_MAPPING_MSG,
                                               SMU_MSG_GfxDeviceDriverReset);
+       if (index < 0)
+               ret = -EINVAL;

        mutex_lock(&smu->message_lock);

--
2.25.1