From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: [PATCH 1/2] spi: sh-msiof: Return early in sh_msiof_dma_once() where possible Date: Thu, 07 Aug 2014 14:52:16 +0200 Message-ID: <4241726.9GIeKRM7S3@avalon> References: <1407413263-20177-1-git-send-email-geert+renesas@glider.be> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: Mark Brown , linux-spi@vger.kernel.org, linux-sh@vger.kernel.org To: Geert Uytterhoeven Return-path: In-Reply-To: <1407413263-20177-1-git-send-email-geert+renesas@glider.be> Sender: linux-sh-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org Hi Geert, On Thursday 07 August 2014 14:07:42 Geert Uytterhoeven wrote: > Reported-by: Laurent Pinchart > Signed-off-by: Geert Uytterhoeven Acked-by: Laurent Pinchart > --- > Feel free to fold into commit 4240305f7cbdc7782aa8bc40cc702775d9ac0839 > ("spi: sh-msiof: Fix leaking of unused DMA descriptors") > --- > drivers/spi/spi-sh-msiof.c | 13 ++++--------- > 1 file changed, 4 insertions(+), 9 deletions(-) > > diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c > index 887c2084130f..0d9ccd0953de 100644 > --- a/drivers/spi/spi-sh-msiof.c > +++ b/drivers/spi/spi-sh-msiof.c > @@ -642,18 +642,14 @@ static int sh_msiof_dma_once(struct sh_msiof_spi_priv > *p, const void *tx, desc_rx = > dmaengine_prep_slave_single(p->master->dma_rx, > p->rx_dma_addr, len, DMA_FROM_DEVICE, > DMA_PREP_INTERRUPT | DMA_CTRL_ACK); > - if (!desc_rx) { > - ret = -EAGAIN; > - goto no_dma_rx; > - } > + if (!desc_rx) > + return -EAGAIN; > > desc_rx->callback = sh_msiof_dma_complete; > desc_rx->callback_param = p; > cookie = dmaengine_submit(desc_rx); > - if (dma_submit_error(cookie)) { > - ret = cookie; > - goto no_dma_rx; > - } > + if (dma_submit_error(cookie)) > + return cookie; > } > > if (tx) { > @@ -738,7 +734,6 @@ no_dma_tx: > if (rx) > dmaengine_terminate_all(p->master->dma_rx); > sh_msiof_write(p, IER, 0); > -no_dma_rx: > return ret; > } -- Regards, Laurent Pinchart