[MTD] [MAPS] move sa1100 flash's probe function to .devinit.text

A pointer to sa1100_mtd_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Pitre <nico@marvell.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/maps/sa1100-flash.c

@@ -351,7 +351,7 @@ sa1100_setup_mtd(struct platform_device *pdev, struct flash_platform_data *plat)
 
 static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
 
-static int __init sa1100_mtd_probe(struct platform_device *pdev)
+static int __devinit sa1100_mtd_probe(struct platform_device *pdev)
 {
 	struct flash_platform_data *plat = pdev->dev.platform_data;
 	struct mtd_partition *parts;