ide: NULL noise: drivers/ide/ide-*.c

Fix this sparse warnings:
  drivers/ide/ide-disk_proc.c:130:11: warning: Using plain integer as NULL pointer
  drivers/ide/ide-floppy_proc.c:32:11: warning: Using plain integer as NULL pointer
  drivers/ide/ide-proc.c:234:11: warning: Using plain integer as NULL pointer
  drivers/ide/ide-tape.c:2141:11: warning: Using plain integer as NULL pointer
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: trivial@kernel.org
Cc: kernel-janitors@vger.kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/ide-disk_proc.c

@@ -125,5 +125,5 @@ const struct ide_proc_devset ide_disk_settings[] = {
 	IDE_PROC_DEVSET(multcount,	0,    16),
 	IDE_PROC_DEVSET(nowerr,		0,     1),
 	IDE_PROC_DEVSET(wcache,		0,     1),
-	{ 0 },
+	{ NULL },
 };

drivers/ide/ide-floppy_proc.c

@@ -29,5 +29,5 @@ const struct ide_proc_devset ide_floppy_settings[] = {
 	IDE_PROC_DEVSET(bios_head, 0,  255),
 	IDE_PROC_DEVSET(bios_sect, 0,   63),
 	IDE_PROC_DEVSET(ticks,	   0,  255),
-	{ 0 },
+	{ NULL },
 };

drivers/ide/ide-proc.c

@@ -231,7 +231,7 @@ static const struct ide_proc_devset ide_generic_settings[] = {
 	IDE_PROC_DEVSET(pio_mode, 0, 255),
 	IDE_PROC_DEVSET(unmaskirq, 0, 1),
 	IDE_PROC_DEVSET(using_dma, 0, 1),
-	{ 0 },
+	{ NULL },
 };
 
 static void proc_ide_settings_warn(void)

drivers/ide/ide-tape.c

@@ -2166,7 +2166,7 @@ static const struct ide_proc_devset idetape_settings[] = {
 	__IDE_PROC_DEVSET(speed,	0, 0xffff, NULL, NULL),
 	__IDE_PROC_DEVSET(tdsc,		IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX,
 					mulf_tdsc, divf_tdsc),
-	{ 0 },
+	{ NULL },
 };
 #endif