[PATCH] spi_s3c24xx.c: warning fix

The set_cs field of struct s3c24xx_spi is declared as returning a int but
the value returned but set_cs is never fixed.  Moreover, the default
function for set_cs and the set_cs defintion in the platform data are
returning void.

I'm proposing to change the prototype to void (*set_cs)(...). By doing
this, I'm also fixing 2 build warnings:

  drivers/spi/spi_s3c24xx.c: In function 's3c24xx_spi_probe':
  drivers/spi/spi_s3c24xx.c:330: warning: assignment from incompatible pointer type
  drivers/spi/spi_s3c24xx.c:335: warning: assignment from incompatible pointer type
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
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/spi_s3c24xx.c

@@ -41,7 +41,7 @@ struct s3c24xx_spi {
 	int			 len;
 	int			 count;
 
-	int			(*set_cs)(struct s3c2410_spi_info *spi,
+	void			(*set_cs)(struct s3c2410_spi_info *spi,
 					  int cs, int pol);
 
 	/* data buffers */