Re: [PATCH] platform/x86/amd/pmf: Fix missing error code in amd_pmf_init_smart_pc()

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On 2/26/2024 08:53, Ilpo Järvinen wrote:
On Mon, 26 Feb 2024, Harshit Mogalapalli wrote:

On the error path, assign -ENOMEM to ret when memory allocation of
"dev->prev_data" fails.

Fixes: e70961505808 ("platform/x86/amd/pmf: Fixup error handling for amd_pmf_init_smart_pc()")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>
---
This is based on static analysis with smatch, only compile tested
---
  drivers/platform/x86/amd/pmf/tee-if.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index 8527dca9cf56..dcbe8f85e122 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -458,8 +458,10 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)
  	amd_pmf_hex_dump_pb(dev);
dev->prev_data = kzalloc(sizeof(*dev->prev_data), GFP_KERNEL);
-	if (!dev->prev_data)
+	if (!dev->prev_data) {
+		ret = -ENOMEM;
  		goto error;
+	}
ret = amd_pmf_start_policy_engine(dev);
  	if (ret)


Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>


Thanks for the patch!

Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>





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