Re: RE: RE: [EXT] [PATCH] scsi: ufs-bsg: Fix runtime PM imbalance on error

From: dinghao . liu
Date: Sat May 23 2020 - 06:10:56 EST


> Hi, Dinghao
>
> > Thank you for your advice! Moving original pm_runtime_put_sync() to after
> > "out" label will influence an error path branched from
> > ups_bsg_verify_query_size(). So I think changing "goto out" to "break" is a good
> > idea. But in this case we may execute an extra
> > sg_copy_from_buffer() and an extra kfree() compared with unpatched version.
> > Does this matter?
> >
> What do you mean " unpatched version "?
>
> I see, below goto will bypass sg_copy_from_buffer() and an extra kfree()
> In case ufs_bsg_alloc_desc_buffer() fails.
>

That's exactly what I want to express. If using "break" is OK I will send
a new patch to fix this problem.

> Bean
>

Regaeds,
Dinghao