linux-kernel - [PATCH 2/2] tty: serial: msm

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Date:	Sat, 23 Apr 2016 10:17:05 -0700
From:	Frank Rowand <frowand.list@...il.com>
To:	Andy Gross <andy.gross@...aro.org>,
	David Brown <david.brown@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.com>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	linux-soc@...r.kernel.org, linux-serial@...r.kernel.org,
	Linux Kernel list <linux-kernel@...r.kernel.org>
CC:	ivan.ivanov@...aro.org
Subject: [PATCH 2/2] tty: serial: msm_serial add info message

From: Frank Rowand <frank.rowand@...sony.com>

Failure to enable DMA by the msm_serial driver is silent.
Add a message to report the failure.

Signed-off-by: Frank Rowand <frank.rowand@...sony.com>
---
 drivers/tty/serial/msm_serial.c |    1 +
 1 file changed, 1 insertion(+)

Index: b/drivers/tty/serial/msm_serial.c
===================================================================
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -170,6 +170,7 @@ rel_tx:
 	dma_release_channel(dma->chan);
 no_tx:
 	memset(dma, 0, sizeof(*dma));
+	dev_info(dev, "msm_serial: DMA not enabled\n");
 }
 
 static void msm_request_rx_dma(struct msm_port *msm_port, resource_size_t base)