linux-kernel - [PATCH 4.14 028/251] spi: spl022: fix Microwire full duplex mode

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Message-Id: <20211124115711.219919872@linuxfoundation.org>
Date:   Wed, 24 Nov 2021 12:54:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Thomas Perrot <thomas.perrot@...tlin.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 028/251] spi: spl022: fix Microwire full duplex mode

From: Thomas Perrot <thomas.perrot@...tlin.com>

[ Upstream commit d81d0e41ed5fe7229a2c9a29d13bad288c7cf2d2 ]

There are missing braces in the function that verify controller parameters,
then an error is always returned when the parameter to select Microwire
frames operation is used on devices allowing it.

Signed-off-by: Thomas Perrot <thomas.perrot@...tlin.com>
Link: https://lore.kernel.org/r/20211022142104.1386379-1-thomas.perrot@bootlin.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/spi/spi-pl022.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 4797c57f42630..6d849945e87a2 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1703,12 +1703,13 @@ static int verify_controller_parameters(struct pl022 *pl022,
 				return -EINVAL;
 			}
 		} else {
-			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX)
+			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX) {
 				dev_err(&pl022->adev->dev,
 					"Microwire half duplex mode requested,"
 					" but this is only available in the"
 					" ST version of PL022\n");
-			return -EINVAL;
+				return -EINVAL;
+			}
 		}
 	}
 	return 0;
-- 
2.33.0