linux-kernel - [PATCH] serial: 8250_bcm7271: Fix return error code in case of dma_alloc

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Message-Id: <20220104175009.7029-1-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Tue,  4 Jan 2022 17:50:08 +0000
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Al Cooper <alcooperx@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Prabhakar <prabhakar.csengg@...il.com>,
        linux-serial@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com, linux-kernel@...r.kernel.org
Subject: [PATCH] serial: 8250_bcm7271: Fix return error code in case of dma_alloc_coherent() failure

In case of dma_alloc_coherent() failure return -ENOMEM instead of
returning -EINVAL.

Fixes: c195438f1e84 ("serial: 8250_bcm7271: Propagate error codes from brcmuart_probe()")
Reported-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
---
Hi All,

This patch applies to -next.

Cheers,
Prabhakar
---
 drivers/tty/serial/8250/8250_bcm7271.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_bcm7271.c b/drivers/tty/serial/8250/8250_bcm7271.c
index cc60a7874e8b..9b878d023dac 100644
--- a/drivers/tty/serial/8250/8250_bcm7271.c
+++ b/drivers/tty/serial/8250/8250_bcm7271.c
@@ -1075,7 +1075,7 @@ static int brcmuart_probe(struct platform_device *pdev)
 						   priv->rx_size,
 						   &priv->rx_addr, GFP_KERNEL);
 		if (!priv->rx_bufs) {
-			ret = -EINVAL;
+			ret = -ENOMEM;
 			goto err;
 		}
 		priv->tx_size = UART_XMIT_SIZE;
@@ -1083,7 +1083,7 @@ static int brcmuart_probe(struct platform_device *pdev)
 						  priv->tx_size,
 						  &priv->tx_addr, GFP_KERNEL);
 		if (!priv->tx_buf) {
-			ret = -EINVAL;
+			ret = -ENOMEM;
 			goto err;
 		}
 	}
-- 
2.17.1