linux-kernel - [PATCH 5/9] spi: atmel-quadspi: return appropriate error code

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Message-ID: <20190130150818.24902-6-tudor.ambarus@microchip.com>
Date:   Wed, 30 Jan 2019 15:08:38 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <broonie@...nel.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <Ludovic.Desroches@...rochip.com>
CC:     <linux-spi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-mtd@...ts.infradead.org>,
        <Tudor.Ambarus@...rochip.com>
Subject: [PATCH 5/9] spi: atmel-quadspi: return appropriate error code

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

Return -ENOTSUPP when atmel_qspi_find_mode() fails. Propagate
the error in atmel_qspi_exec_op().

Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
---
 drivers/spi/atmel-quadspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index 3643f0c851b0..e6de6e3d1345 100644
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -208,7 +208,7 @@ static int atmel_qspi_find_mode(const struct spi_mem_op *op)
 		if (atmel_qspi_is_compatible(op, &sama5d2_qspi_modes[i]))
 			return i;
 
-	return -1;
+	return -ENOTSUPP;
 }
 
 static bool atmel_qspi_supports_op(struct spi_mem *mem,
@@ -239,7 +239,7 @@ static int atmel_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 
 	mode = atmel_qspi_find_mode(op);
 	if (mode < 0)
-		return -ENOTSUPP;
+		return mode;
 
 	ifr |= sama5d2_qspi_modes[mode].config;
 
-- 
2.9.5