spi: fsl-spi: Fix memory leak

mpc8xxx_spi_probe() has set master->cleanup = mpc8xxx_spi_cleanup,
however current code overrides the setting in fsl_spi_probe() and set
master->cleanup = fsl_spi_cleanup.
Thus the memory allocated for cs is not freed anywhere.
Convert to use devm_kzalloc to fix the memory leak.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index b3e7775034db..98ccd231bf00 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -431,7 +431,7 @@ static int fsl_spi_setup(struct spi_device *spi)
                 return -EINVAL;
 
         if (!cs) {
-                cs = kzalloc(sizeof *cs, GFP_KERNEL);
+                cs = devm_kzalloc(&spi->dev, sizeof(*cs), GFP_KERNEL);
                 if (!cs)
                         return -ENOMEM;
                 spi->controller_state = cs;