public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Sudeep Holla <sudeep.holla@arm.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>, Felipe Balbi <balbi@ti.com>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] usb: isp1760: fix spin unlock in the error path of isp1760_udc_start
Date: Fri, 20 Mar 2015 14:27:40 +0000	[thread overview]
Message-ID: <550C2E5C.70708@arm.com> (raw)
In-Reply-To: <14712088.dyzVQIQYao@avalon>

Hi Laurent,

On 20/03/15 14:20, Laurent Pinchart wrote:
> Hi Sudeep,
>
> Thank you for the patch.
>
> On Friday 20 March 2015 11:42:17 Sudeep Holla wrote:
>> Commit a124820de5fd ("usb: isp1760: fix possible deadlock in
>> isp1760_udc_irq") replaced spin_{un,}lock with
>> spin_{un,}lock_irq{save,restore}. However it missed an error path resulting
>> in the smatch warning as below:
>>
>> drivers/usb/isp1760/isp1760-udc.c:1230 isp1760_udc_start() warn:
>> inconsistent returns 'irqsave:flags'. Locked on:   line 1207
>> Unlocked on: line 1199
>>
>> This patch fixes the spin unlock in the error path in isp1760_udc_start
>> thereby removing the smatch warning mentioned above.
>>
>> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>> Cc: Felipe Balbi <balbi@ti.com>
>> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
>
> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>

Thanks

>> ---
>>   drivers/usb/isp1760/isp1760-udc.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> Hi Laurent, Felipe,
>>
>> I am extremely sorry for missing this in my original patch.
>
> I hope you will be ashamed for the 7 generations to come for this totally
> unacceptable low quality standard.
>

Yes ;)

Regards,
Sudeep



  reply	other threads:[~2015-03-20 14:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-20 11:42 [PATCH] usb: isp1760: fix spin unlock in the error path of isp1760_udc_start Sudeep Holla
2015-03-20 14:20 ` Laurent Pinchart
2015-03-20 14:27   ` Sudeep Holla [this message]
2015-03-24 16:37     ` Felipe Balbi
2015-03-24 16:38       ` Felipe Balbi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=550C2E5C.70708@arm.com \
    --to=sudeep.holla@arm.com \
    --cc=balbi@ti.com \
    --cc=dan.carpenter@oracle.com \
    --cc=laurent.pinchart@ideasonboard.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox