Re: [PATCH] platform/x86/amd/pmf: Fix a double put in amd_pmf_remove()

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Le 25/07/2024 à 23:13, Christophe JAILLET a écrit :
The 'input_dev' is a managed resource allocated with
devm_input_allocate_device(), so there is no need to call
input_unregister_device() explicitly. It will be called automatically
when the driver is removed.

Fixes: 4c92d448e3e6 ("platform/x86/amd/pmf: Use existing input event codes to update system states")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested-only

I'm not 100% confident with this change. The error handling scheme is not
a clear to me as what I usually see. For example, the last calls from
amd_pmf_probe() don't handle error at all. So the probe just succeeds in
these cases.

So, because of it, it is maybe fine to call input_unregister_device() in
amd_pmf_deinit_smart_pc(), even if it looks strange to me.

Review with care!

NACK.

Things have been explained to me in another similar patch proposal.

Sorry for the noise.

CJ


---
  drivers/platform/x86/amd/pmf/tee-if.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c
index e246367aacee..cc721fbc3e0b 100644
--- a/drivers/platform/x86/amd/pmf/tee-if.c
+++ b/drivers/platform/x86/amd/pmf/tee-if.c
@@ -515,9 +515,6 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)
void amd_pmf_deinit_smart_pc(struct amd_pmf_dev *dev)
  {
-	if (dev->pmf_idev)
-		input_unregister_device(dev->pmf_idev);
-
  	if (pb_side_load && dev->esbin)
  		amd_pmf_remove_pb(dev);





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