From: Julia Lawall <[email protected]>
Sent: Thursday, April 30, 2015 12:12 AM
To: Gujulan Elango, Hari Prasath (H.)
Cc: [email protected]; [email protected]; [email protected];
[email protected]; [email protected]
Subject: Re: [PATCH] staging: rtl8712: Fix freeing ERR_PTR
On Wed, 29 Apr 2015, Gujulan Elango, Hari Prasath (H.) wrote:
> The return value of memdup_user is a pointer to errno.Freeing it will cause
> error.Hence set it to NULL before branching to free the pointer.smatch also
> raises the same warning.
Perhaps there is no point to jumping to the label if there is nothing to
do there.
The code contains other strange things, like:
if (status) {
ret = -EFAULT;
goto _r871x_mp_ioctl_hdl_exit;
}
_r871x_mp_ioctl_hdl_exit:
Overall, it would be nice to see if the code could be reorganized so that
there is only a goto if there is something to do to cleanup, so that
return ret would only be executed in an error case, and so that the code
would return 0 directly on success.
thanks for your comments. I am sending version 2 of the patch for review.
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