[PATCH] spi: bitbang: Make spi_bitbang_stop() return void

[Axel Lin]

spi_bitbang_stop() never fails, so make it return void.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
 drivers/spi/spi-bitbang.c       | 4 +---
 drivers/spi/spi-gpio.c          | 5 ++---
 drivers/spi/spi-omap-uwire.c    | 5 ++---
 include/linux/spi/spi_bitbang.h | 2 +-
 4 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 3bfdb85..dc7d2c2 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -466,11 +466,9 @@ EXPORT_SYMBOL_GPL(spi_bitbang_start);
 /**
  * spi_bitbang_stop - stops the task providing spi communication
  */
-int spi_bitbang_stop(struct spi_bitbang *bitbang)
+void spi_bitbang_stop(struct spi_bitbang *bitbang)
 {
        spi_unregister_master(bitbang->master);
-
-       return 0;
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_stop);
 
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 406bbd7..0982307 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -502,13 +502,12 @@ static int spi_gpio_remove(struct platform_device *pdev)
 {
        struct spi_gpio                 *spi_gpio;
        struct spi_gpio_platform_data   *pdata;
-       int                             status;
 
        spi_gpio = platform_get_drvdata(pdev);
        pdata = dev_get_platdata(&pdev->dev);
 
        /* stop() unregisters child devices too */
-       status = spi_bitbang_stop(&spi_gpio->bitbang);
+       spi_bitbang_stop(&spi_gpio->bitbang);
 
        if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
                gpio_free(SPI_MISO_GPIO);
@@ -517,7 +516,7 @@ static int spi_gpio_remove(struct platform_device *pdev)
        gpio_free(SPI_SCK_GPIO);
        spi_master_put(spi_gpio->bitbang.master);
 
-       return status;
+       return 0;
 }
 
 MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 31ce92f..be2a2e1 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -516,14 +516,13 @@ static int uwire_probe(struct platform_device *pdev)
 static int uwire_remove(struct platform_device *pdev)
 {
        struct uwire_spi        *uwire = platform_get_drvdata(pdev);
-       int                     status;
 
        // FIXME remove all child devices, somewhere ...
 
-       status = spi_bitbang_stop(&uwire->bitbang);
+       spi_bitbang_stop(&uwire->bitbang);
        uwire_off(uwire);
        iounmap(uwire_base);
-       return status;
+       return 0;
 }
 
 /* work with hotplug and coldplug */
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index daebaba..85578d4 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -42,6 +42,6 @@ extern int spi_bitbang_setup_transfer(struct spi_device *spi,
 
 /* start or stop queue processing */
 extern int spi_bitbang_start(struct spi_bitbang *spi);
-extern int spi_bitbang_stop(struct spi_bitbang *spi);
+extern void spi_bitbang_stop(struct spi_bitbang *spi);
 
 #endif /* __SPI_BITBANG_H */
-- 
1.8.3.2



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