Patch "spi: spl022: fix Microwire full duplex mode" has been added to the 4.9-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    spi: spl022: fix Microwire full duplex mode

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     spi-spl022-fix-microwire-full-duplex-mode.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit b98dd9eaba5e158b02573dc05fe6d0550aac5372
Author: Thomas Perrot <thomas.perrot@xxxxxxxxxxx>
Date:   Fri Oct 22 16:21:04 2021 +0200

    spi: spl022: fix Microwire full duplex mode
    
    [ 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@xxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20211022142104.1386379-1-thomas.perrot@xxxxxxxxxxx
    Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index f7f7ba17b40e9..27cf77dfc6038 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;