linux-kernel - [PATCH] serial: fsl_lpuart: Delete an error message for a failed memory allocation in lpuart_start_rx

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Date:   Sat, 9 Dec 2017 21:41:37 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-serial@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] serial: fsl_lpuart: Delete an error message for a failed
 memory allocation in lpuart_start_rx_dma()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 9 Dec 2017 21:34:23 +0100

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/tty/serial/fsl_lpuart.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index c84e6f0db54e..694751ebabf4 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -998,10 +998,8 @@ static inline int lpuart_start_rx_dma(struct lpuart_port *sport)
 		sport->rx_dma_rng_buf_len = 16;
 
 	ring->buf = kmalloc(sport->rx_dma_rng_buf_len, GFP_ATOMIC);
-	if (!ring->buf) {
-		dev_err(sport->port.dev, "Ring buf alloc failed\n");
+	if (!ring->buf)
 		return -ENOMEM;
-	}
 
 	sg_init_one(&sport->rx_sgl, ring->buf, sport->rx_dma_rng_buf_len);
 	sg_set_buf(&sport->rx_sgl, ring->buf, sport->rx_dma_rng_buf_len);
-- 
2.15.1