From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bich HEMON Subject: [PATCH 07/20] serial: stm32: less messages on dma alloc error Date: Mon, 26 Jun 2017 12:49:11 +0000 Message-ID: <1498481318-1894-8-git-send-email-bich.hemon@st.com> References: <1498481318-1894-1-git-send-email-bich.hemon@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <1498481318-1894-1-git-send-email-bich.hemon@st.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Greg Kroah-Hartman , Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre TORGUE , Jiri Slaby , "linux-serial@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Cc: Bich HEMON List-Id: devicetree@vger.kernel.org From: Bich Hemon Just display one info (instead of two) in the log buffer when there is no dma. Signed-off-by: Gerald Baeza --- drivers/tty/serial/stm32-usart.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 79ac167..dcc6d1e 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -786,10 +786,8 @@ static int stm32_of_dma_rx_probe(struct stm32_port *stm32port, /* Request DMA RX channel */ stm32port->rx_ch = dma_request_slave_channel(dev, "rx"); - if (!stm32port->rx_ch) { - dev_info(dev, "rx dma alloc failed\n"); + if (!stm32port->rx_ch) return -ENODEV; - } stm32port->rx_buf = dma_alloc_coherent(&pdev->dev, RX_BUF_L, &stm32port->rx_dma_buf, GFP_KERNEL); @@ -858,10 +856,8 @@ static int stm32_of_dma_tx_probe(struct stm32_port *stm32port, /* Request DMA TX channel */ stm32port->tx_ch = dma_request_slave_channel(dev, "tx"); - if (!stm32port->tx_ch) { - dev_info(dev, "tx dma alloc failed\n"); + if (!stm32port->tx_ch) return -ENODEV; - } stm32port->tx_buf = dma_alloc_coherent(&pdev->dev, TX_BUF_L, &stm32port->tx_dma_buf, GFP_KERNEL); -- 1.9.1