From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 22 Sep 2009 23:44:26 +0000 (-0700)
Subject: mmc: register mmci-omap-hs using platform_driver_probe
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f400cd8c84ba51e0ef3d9b680fe9f45ab54c792c;p=openwrt%2Fstaging%2Fblogic.git

mmc: register mmci-omap-hs using platform_driver_probe

omap_mmc_probe lives in .init.text, so using platform_driver_register to
register it is wrong because binding a device after the init memory is
discarded (e.g.  via sysfs) results in an oops.

As requested by David Brownell platform_driver_probe is used instead of
moving the probe function to .devinit.text as proposed initially.  This
saves some memory, but devices registered after the driver is probed are
not bound (probably there are none) and binding via sysfs isn't possible.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Jean Pihet <jpihet@mvista.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: Andy Lowe <alowe@mvista.com>
Cc: Adrian Hunter <ext-adrian.hunter@nokia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Madhusudhan Chikkature<madhu.cr@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fee895b02f39..4b3af9e11b7b 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1314,7 +1314,6 @@ clk_en_err:
 #endif
 
 static struct platform_driver omap_mmc_driver = {
-	.probe		= omap_mmc_probe,
 	.remove		= omap_mmc_remove,
 	.suspend	= omap_mmc_suspend,
 	.resume		= omap_mmc_resume,
@@ -1327,7 +1326,7 @@ static struct platform_driver omap_mmc_driver = {
 static int __init omap_mmc_init(void)
 {
 	/* Register the MMC driver */
-	return platform_driver_register(&omap_mmc_driver);
+	return platform_driver_probe(&omap_mmc_driver, omap_mmc_probe);
 }
 
 static void __exit omap_mmc_cleanup(void)