On Mon, Jul 23, 2007 at 11:47:30AM +0200, Michal Piotrowski wrote:
> Subject : drivers/misc/asus-laptop.c:*: error: 'struct led_classdev' has no member named 'class_dev'
> References : http://lkml.org/lkml/2007/7/22/299
> Last known good : ?
> Submitter : Gabriel C <[email protected]>
> Caused-By : ?
> Handled-By : ?
> Status : unknown
>From 2a7e1148a9d3ee860dc2650c9a45288b120e250f Mon Sep 17 00:00:00 2001
From: Al Viro <[email protected]>
Date: Mon, 23 Jul 2007 06:20:22 -0400
Subject: [PATCH] Fix failure exits in asus-laptop
Fallout from f8a7c6fe14f556ca8eeddce258cb21392d0c3a2f. However, looking
at it shows that checks done in ASUS_LED_UNREGISTER() can't trigger
at all (we never get to asus_led_exit() if registration fails) and
if that registration fails, we actually leak stuff. IOW, it's worse
than just replacing class_dev with dev in there - the tests themselves
had been papering over the lousy cleanup logics.
Signed-off-by: Al Viro <[email protected]>
---
drivers/misc/asus-laptop.c | 32 +++++++++++++++++++++-----------
1 files changed, 21 insertions(+), 11 deletions(-)
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index f753060..6b89854 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -1067,19 +1067,16 @@ static void asus_backlight_exit(void)
}
#define ASUS_LED_UNREGISTER(object) \
- if(object##_led.class_dev \
- && !IS_ERR(object##_led.class_dev)) \
- led_classdev_unregister(&object##_led)
+ led_classdev_unregister(&object##_led)
static void asus_led_exit(void)
{
+ destroy_workqueue(led_workqueue);
ASUS_LED_UNREGISTER(mled);
ASUS_LED_UNREGISTER(tled);
ASUS_LED_UNREGISTER(pled);
ASUS_LED_UNREGISTER(rled);
ASUS_LED_UNREGISTER(gled);
-
- destroy_workqueue(led_workqueue);
}
static void __exit asus_laptop_exit(void)
@@ -1135,29 +1132,42 @@ static int asus_led_init(struct device *dev)
rv = ASUS_LED_REGISTER(mled, dev);
if (rv)
- return rv;
+ goto out;
rv = ASUS_LED_REGISTER(tled, dev);
if (rv)
- return rv;
+ goto out1;
rv = ASUS_LED_REGISTER(rled, dev);
if (rv)
- return rv;
+ goto out2;
rv = ASUS_LED_REGISTER(pled, dev);
if (rv)
- return rv;
+ goto out3;
rv = ASUS_LED_REGISTER(gled, dev);
if (rv)
- return rv;
+ goto out4;
led_workqueue = create_singlethread_workqueue("led_workqueue");
if (!led_workqueue)
- return -ENOMEM;
+ goto out5;
return 0;
+out5:
+ rv = -ENOMEM;
+ ASUS_LED_UNREGISTER(gled);
+out4:
+ ASUS_LED_UNREGISTER(pled);
+out3:
+ ASUS_LED_UNREGISTER(rled);
+out2:
+ ASUS_LED_UNREGISTER(tled);
+out1:
+ ASUS_LED_UNREGISTER(mled);
+out:
+ return rv;
}
static int __init asus_laptop_init(void)
--
1.5.3.GIT
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
