diff options
Diffstat (limited to 'drivers/spi/spi-sh-sci.c')
| -rw-r--r-- | drivers/spi/spi-sh-sci.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c index 8eefeb6007d..b83dd733684 100644 --- a/drivers/spi/spi-sh-sci.c +++ b/drivers/spi/spi-sh-sci.c @@ -14,10 +14,8 @@ */ #include <linux/kernel.h> -#include <linux/init.h> #include <linux/delay.h> #include <linux/spinlock.h> -#include <linux/workqueue.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> @@ -109,7 +107,7 @@ static void sh_sci_spi_chipselect(struct spi_device *dev, int value) { struct sh_sci_spi *sp = spi_master_get_devdata(dev->master); - if (sp->info && sp->info->chip_select) + if (sp->info->chip_select) (sp->info->chip_select)(sp->info, dev->chip_select, value); } @@ -131,9 +129,14 @@ static int sh_sci_spi_probe(struct platform_device *dev) platform_set_drvdata(dev, sp); sp->info = dev_get_platdata(&dev->dev); + if (!sp->info) { + dev_err(&dev->dev, "platform data is missing\n"); + ret = -ENOENT; + goto err1; + } /* setup spi bitbang adaptor */ - sp->bitbang.master = spi_master_get(master); + sp->bitbang.master = master; sp->bitbang.master->bus_num = sp->info->bus_num; sp->bitbang.master->num_chipselect = sp->info->num_chipselect; sp->bitbang.chipselect = sh_sci_spi_chipselect; @@ -172,9 +175,9 @@ static int sh_sci_spi_remove(struct platform_device *dev) { struct sh_sci_spi *sp = platform_get_drvdata(dev); - iounmap(sp->membase); - setbits(sp, PIN_INIT, 0); spi_bitbang_stop(&sp->bitbang); + setbits(sp, PIN_INIT, 0); + iounmap(sp->membase); spi_master_put(sp->bitbang.master); return 0; } |