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[JFFS2] Fix cleanup in case of GC-Task not started 

Do not call wait_for_completion, when the gc task is not there. 
Prevent an oops when the gc thread was not started.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2005-05-20 22:37:15 +01:00 committed by Thomas Gleixner
parent fb4a90bfcd
commit e2d48b1a98
1 changed files with 5 additions and 2 deletions
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5
fs/jffs2/background.c
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@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
* $Id: background.c,v 1.52 2005/05/19 16:18:08 gleixner Exp $
* $Id: background.c,v 1.54 2005/05/20 21:37:12 gleixner Exp $
*
*/
@ -56,12 +56,15 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
{
int wait = 0;
spin_lock(&c->erase_completion_lock);
if (c->gc_task) {
D1(printk(KERN_DEBUG "jffs2: Killing GC task %d\n", c->gc_task->pid));
send_sig(SIGKILL, c->gc_task, 1);
wait = 1;
}
spin_unlock(&c->erase_completion_lock);
if (wait)
wait_for_completion(&c->gc_thread_exit);
}