Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754013AbaJWKHc (ORCPT ); Thu, 23 Oct 2014 06:07:32 -0400 Received: from mail-pd0-f181.google.com ([209.85.192.181]:58447 "EHLO mail-pd0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865AbaJWKH1 (ORCPT ); Thu, 23 Oct 2014 06:07:27 -0400 Date: Thu, 23 Oct 2014 15:37:14 +0530 From: Sudip Mukherjee To: Paul Zimmerman Cc: "balbi@ti.com" , Greg Kroah-Hartman , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v3 1/2] usb: dwc2: gadget: sparse warning of context imbalance Message-ID: <20141023100714.GA2386@sudip-PC> References: <1413521043-7587-1-git-send-email-sudipm.mukherjee@gmail.com> <20141017185209.GY26260@saruman> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 17, 2014 at 07:05:19PM +0000, Paul Zimmerman wrote: > > From: Felipe Balbi [mailto:balbi@ti.com] > > Sent: Friday, October 17, 2014 11:52 AM > > > > On Fri, Oct 17, 2014 at 06:50:19PM +0000, Paul Zimmerman wrote: > > > > From: Sudip Mukherjee [mailto:sudipm.mukherjee@gmail.com] > > > > Sent: Thursday, October 16, 2014 9:44 PM > > > > > > > > sparse was giving the following warning: > > > > warning: context imbalance in 's3c_hsotg_ep_enable' > > > > - different lock contexts for basic block > > > > > > > > we were returning ENOMEM while still holding the spinlock. > > > > The sparse warning was fixed by releasing the spinlock before return. > > > > > > > > Signed-off-by: Sudip Mukherjee > > > > --- > > > > drivers/usb/dwc2/gadget.c | 7 +++++-- > > > > 1 file changed, 5 insertions(+), 2 deletions(-) > > > > > > > > diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c > > > > index 7b5856f..7f25527 100644 > > > > --- a/drivers/usb/dwc2/gadget.c > > > > +++ b/drivers/usb/dwc2/gadget.c > > > > @@ -2561,8 +2561,10 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep, > > > > hs_ep->fifo_size = val; > > > > break; > > > > } > > > > - if (i == 8) > > > > - return -ENOMEM; > > > > + if (i == 8) { > > > > + ret = -ENOMEM; > > > > + goto error; > > > > + } > > > > } > > > > > > > > /* for non control endpoints, set PID to D0 */ > > > > @@ -2579,6 +2581,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep, > > > > /* enable the endpoint interrupt */ > > > > s3c_hsotg_ctrl_epint(hsotg, index, dir_in, 1); > > > > > > > > +error: > > > > spin_unlock_irqrestore(&hsotg->lock, flags); > > > > return ret; > > > > } > > > > > > Acked-by: Paul Zimmerman > > > > v3.18-rc or v3.19 ? > > v3.18-rc, since it's a bugfix. And I forgot, this should be marked for > 3.17 stable too. > hi, this is not yet added to linux-next , is something pending from my side? thanks sudip > -- > Paul > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/