From abcadeb255074d1351d110ef696b647859fa3d5b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 30 Mar 2014 16:43:23 +0800 Subject: [PATCH] spi: fsl: Kill mpc8xxx_spi_cleanup and convert fsl_espi_setup to use devm_kzalloc In current code, master->cleanup and master->setup are not set in the same function. This makes it hard to read and not good for code maintain. One example is in fsl-spi.c, master->cleanup is overrided in mpc8xxx_spi_probe() which leads to a memory leak. This patch removes mpc8xxx_spi_cleanup() and converts fsl_espi_setup to use devm_kzalloc so we don't need to take care of freeing memory. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-espi.c | 2 +- drivers/spi/spi-fsl-lib.c | 6 ------ drivers/spi/spi-fsl-lib.h | 1 - 3 files changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index e767f5831b9c..3cf7d65bc739 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -458,7 +458,7 @@ static int fsl_espi_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; diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c index e5d45fca3551..95212ea96c8d 100644 --- a/drivers/spi/spi-fsl-lib.c +++ b/drivers/spi/spi-fsl-lib.c @@ -99,11 +99,6 @@ int mpc8xxx_spi_transfer(struct spi_device *spi, return 0; } -void mpc8xxx_spi_cleanup(struct spi_device *spi) -{ - kfree(spi->controller_state); -} - const char *mpc8xxx_spi_strmode(unsigned int flags) { if (flags & SPI_QE_CPU_MODE) { @@ -134,7 +129,6 @@ int mpc8xxx_spi_probe(struct device *dev, struct resource *mem, | SPI_LSB_FIRST | SPI_LOOP; master->transfer = mpc8xxx_spi_transfer; - master->cleanup = mpc8xxx_spi_cleanup; master->dev.of_node = dev->of_node; mpc8xxx_spi = spi_master_get_devdata(master); diff --git a/drivers/spi/spi-fsl-lib.h b/drivers/spi/spi-fsl-lib.h index 52db6936778e..2fcbfd01d109 100644 --- a/drivers/spi/spi-fsl-lib.h +++ b/drivers/spi/spi-fsl-lib.h @@ -124,7 +124,6 @@ extern struct mpc8xxx_spi_probe_info *to_of_pinfo( extern int mpc8xxx_spi_bufs(struct mpc8xxx_spi *mspi, struct spi_transfer *t, unsigned int len); extern int mpc8xxx_spi_transfer(struct spi_device *spi, struct spi_message *m); -extern void mpc8xxx_spi_cleanup(struct spi_device *spi); extern const char *mpc8xxx_spi_strmode(unsigned int flags); extern int mpc8xxx_spi_probe(struct device *dev, struct resource *mem, unsigned int irq);