[PATCH] SPI controller build/warning fixes

The signature of the per-device cleanup() routine changed to remove its
const-ness.  Three new SPI controller drivers now need that change, to
eliminate build warnings.

This also fixes a build bug with atmel_spi on AT91 systems.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/spi/atmel_spi.c

@@ -23,6 +23,10 @@
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
 
+#ifdef CONFIG_ARCH_AT91
+#include <asm/arch/cpu.h>
+#endif
+
 #include "atmel_spi.h"
 
 /*
@@ -491,7 +495,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 	return 0;
 }
 
-static void atmel_spi_cleanup(const struct spi_device *spi)
+static void atmel_spi_cleanup(struct spi_device *spi)
 {
 	if (spi->controller_state)
 		gpio_free((unsigned int)spi->controller_data);

drivers/spi/omap_uwire.c

@@ -459,7 +459,7 @@ static int uwire_setup(struct spi_device *spi)
 	return uwire_setup_transfer(spi, NULL);
 }
 
-static void uwire_cleanup(const struct spi_device *spi)
+static void uwire_cleanup(struct spi_device *spi)
 {
 	kfree(spi->controller_state);
 }

drivers/spi/spi_imx.c

@@ -1361,10 +1361,9 @@ static int setup(struct spi_device *spi)
 	return status;
 }
 
-static void cleanup(const struct spi_device *spi)
+static void cleanup(struct spi_device *spi)
 {
-	struct chip_data *chip = spi_get_ctldata((struct spi_device *)spi);
-	kfree(chip);
+	kfree(spi_get_ctldata(spi));
 }
 
 static int init_queue(struct driver_data *drv_data)