From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: [PATCH] fix sysfs oops [1/4]
Date: Tue, 23 Dec 2003 00:24:39 +0000 [thread overview]
Message-ID: <marc-linux-hotplug-107213951118298@msgid-missing> (raw)
This fixes an oops when a kobject is unregistered before it's child is.
The usb-serial devices show this bug very easily (yank out a device
while its port is opened...)
Patch was originally written by Mike Gorse <mgorse@mgorse.dhs.org>
diff -Nru a/fs/sysfs/dir.c b/fs/sysfs/dir.c
--- a/fs/sysfs/dir.c Mon Dec 22 16:02:07 2003
+++ b/fs/sysfs/dir.c Mon Dec 22 16:02:07 2003
@@ -83,7 +83,8 @@
struct dentry * parent = dget(d->d_parent);
down(&parent->d_inode->i_sem);
d_delete(d);
- simple_rmdir(parent->d_inode,d);
+ if (d->d_inode)
+ simple_rmdir(parent->d_inode,d);
pr_debug(" o %s removing done (%d)\n",d->d_name.name,
atomic_read(&d->d_count));
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reply other threads:[~2003-12-23 0:24 UTC|newest]
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