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authorMichael Buesch <mb@bu3sch.de>2007-10-28 13:07:54 +0100
committerDavid S. Miller <davem@sunset.davemloft.net>2007-11-10 21:59:11 -0800
commit8a8f1c0437a77cce29c1cb6089f01f22a6d9ca6e (patch)
treeaff63cd4d043135c50cccd43ee32db57f62e79b9 /net/rfkill/rfkill.c
parent8d8c90e3fd1f8895f6d48bdcb34ba69a1fe73616 (diff)
downloadlinux-8a8f1c0437a77cce29c1cb6089f01f22a6d9ca6e.tar.gz
rfkill: Register LED triggers before registering switch
Registering the switch triggers a LED event, so we must register
LED triggers before the switch.
This has a potential to fix a crash, depending on how the device
driver initializes the rfkill data structure.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/rfkill/rfkill.c')
-rw-r--r--net/rfkill/rfkill.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index 51d151c0e962..c6a9412fe5bd 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -388,19 +388,20 @@ int rfkill_register(struct rfkill *rfkill)
 	if (!rfkill->toggle_radio)
 		return -EINVAL;
 
+	snprintf(dev->bus_id, sizeof(dev->bus_id),
+		 "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);
+
+	rfkill_led_trigger_register(rfkill);
+
 	error = rfkill_add_switch(rfkill);
 	if (error)
 		return error;
 
-	snprintf(dev->bus_id, sizeof(dev->bus_id),
-		 "rfkill%ld", (long)atomic_inc_return(&rfkill_no) - 1);
-
 	error = device_add(dev);
 	if (error) {
 		rfkill_remove_switch(rfkill);
 		return error;
 	}
-	rfkill_led_trigger_register(rfkill);
 
 	return 0;
 }
@@ -416,9 +417,9 @@ EXPORT_SYMBOL(rfkill_register);
  */
 void rfkill_unregister(struct rfkill *rfkill)
 {
-	rfkill_led_trigger_unregister(rfkill);
 	device_del(&rfkill->dev);
 	rfkill_remove_switch(rfkill);
+	rfkill_led_trigger_unregister(rfkill);
 	put_device(&rfkill->dev);
 }
 EXPORT_SYMBOL(rfkill_unregister);