From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date: Wed, 5 Mar 2025 04:58:41 +0000 (+0530)
Subject: platform/x86/amd/pmf: Propagate PMF-TA return codes
X-Git-Tag: v6.14-rc6~21^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9ba93cb8212d62bccd8b41b8adb6656abf37280a;p=thirdparty%2Flinux.git

platform/x86/amd/pmf: Propagate PMF-TA return codes

In the amd_pmf_invoke_cmd_init() function within the PMF driver ensure
that the actual result from the PMF-TA is returned rather than a generic
EIO. This change allows for proper handling of errors originating from the
PMF-TA.

Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20250305045842.4117767-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---

diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index 8c88769ea1d87..b404764550c4c 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -323,7 +323,7 @@ static int amd_pmf_start_policy_engine(struct amd_pmf_dev *dev)
 	} else {
 		dev_err(dev->dev, "ta invoke cmd init failed err: %x\n", res);
 		dev->smart_pc_enabled = false;
-		return -EIO;
+		return res;
 	}
 
 	return 0;