Re: [PATCH] fTPM: fix PTR_ERR() usage

From: Sasha Levin
Date: Sat Jul 13 2019 - 11:11:03 EST


On Fri, Jul 12, 2019 at 06:34:24PM +0300, Jarkko Sakkinen wrote:
On Fri, 2019-07-12 at 13:49 +0200, Arnd Bergmann wrote:
A last minute change must have confused PTR_ERR() and ERR_PTR():

drivers/char/tpm/tpm_ftpm_tee.c:236:15: error: incompatible pointer to integer
conversion passing 'struct tee_context *' to parameter of type 'long' [-
Werror,-Wint-conversion]
if (ERR_PTR(pvt_data->ctx) == -ENOENT)
drivers/char/tpm/tpm_ftpm_tee.c:239:18: error: incompatible pointer to integer
conversion passing 'struct tee_context *' to parameter of type 'long' [-
Werror,-Wint-conversion]
return ERR_PTR(pvt_data->ctx);

Fixes: c975c3911cc2 ("fTPM: firmware TPM running in TEE")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Arnd, thanks.

I squashed this to the associated commit.

I also fine-tuned the commit messages a bit (tag, imperative form).

Yes, thank you!

Started also wondering tha tpm_ftpm_tee is a too generic name given that
this is for ARM TZ only. Would it make sense to rename it as something
like tpm_ftpm_tee_arm? Other proposals are welcome. Just made something
up.

Hm, isn't the _tee part enough?

--
Thanks,
Sasha