Re: [PATCH] blkcg: Fix memory leak in blkg_conf_prep()

From: Wu Bo
Date: Mon May 18 2020 - 07:34:40 EST


On 2020/5/15 23:08, Markus Elfring wrote:
â
new_blkg = blkg_alloc(pos, q, GFP_KERNEL);
â

I suggest to omit the source code quotation from the change description.


if calling blkg_lookup_check() failed, at the IS_ERR block,
the new_blkg should be free before goto lable fail_unlock
in blkg_conf_prep() function.

How do you think about a wording variant like the following?

If a call of the function âblkg_lookup_checkâ failed,
release the previously allocated block group before jumping
to the target âfail_unlockâ in the implementation of
the function âblkg_conf_prepâ.


Thanks for your suggestion. omit the source code quotation from the description is more friendly. I will modify the description in V2 patch.

Thanks,
Wu Bo


Would you like to add the tag âFixesâ to the commit message?

Regards,
Markus