Patchwork [37/62] net: move am79c961's probe function to .devinit.text

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Submitter gregkh@suse.de
Date March 2, 2010, 11:28 p.m.
Message ID <1267572541-410-37-git-send-email-gregkh@suse.de>
Download mbox | patch
Permalink /patch/46747/
State Not Applicable
Delegated to: David Miller
Headers show

Comments

gregkh@suse.de - March 2, 2010, 11:28 p.m.
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

A pointer to am79c961_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: Roel Kluin <12o3l@tiscali.nl>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <netdev@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/net/arm/am79c961a.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch

diff --git a/drivers/net/arm/am79c961a.c b/drivers/net/arm/am79c961a.c
index 164b37e..1c3c1f9 100644
--- a/drivers/net/arm/am79c961a.c
+++ b/drivers/net/arm/am79c961a.c
@@ -680,7 +680,7 @@  static const struct net_device_ops am79c961_netdev_ops = {
 #endif
 };
 
-static int __init am79c961_probe(struct platform_device *pdev)
+static int __devinit am79c961_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct net_device *dev;