Re: [PATCH 4/4] Add MMC Password Protection (lock/unlock) support V9: mmc_sysfs.diff

[Anderson Briglia <anderson.briglia@indt.org.br>]

ext Pierre Ossman wrote:
> I've queued it up for -mm, but there a few more comments I want resolved
> before this can move to Linus...

Ok, thanks for the revisions.
> 
> You need to clean up mmc_lockable_store(). It had a few broken variable
> declarations that even prevented it from compiling, and after I fixed
> that I still get:
> 
> drivers/mmc/mmc_sysfs.c: In function ‘mmc_lockable_store’:
> drivers/mmc/mmc_sysfs.c:160: warning: ignoring return value of
> ‘device_attach’, declared with attribute warn_unused_result
> drivers/mmc/mmc_sysfs.c:93: warning: ‘mmc_key’ may be used uninitialized
> in this function

I did a modification at this patch and did not get those warnings anymore.
> 
> There's also no handling for an invalid string written to the sysfs node.

Is this really needed? I thought the function just ignored other values sent to itself that were not handled.

> 
> And third, you're a bit excessive on the goto:s. E.g. out_unlocked is
> used in a single place, so it is completely unnecessary. Please do a
> general cleanup of the control flow.

Ok.

Regards,

Anderson Briglia
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