Re: [PATCH] usb: isp1760: fix spin unlock in the error path of isp1760_udc_start

From: Sudeep Holla
Date: Fri Mar 20 2015 - 10:27:30 EST


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@xxxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>

Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>


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


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