diff options
| author | Li Zefan <lizefan@huawei.com> | 2014-02-12 12:44:57 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-26 17:13:20 -0700 |
| commit | 371d9bb7dab6293e79aafb5481b842629a60aa5e (patch) | |
| tree | 4aecba22fcca3750180832a4e03c8ed79100c447 | |
| parent | 5c8e8e1378bb5be5600f8ed23d8bc61cc466b6eb (diff) | |
jffs2: remove from wait queue after schedule()
commit 3ead9578443b66ddb3d50ed4f53af8a0c0298ec5 upstream.
@wait is a local variable, so if we don't remove it from the wait queue
list, later wake_up() may end up accessing invalid memory.
This was spotted by eyes.
Signed-off-by: Li Zefan <lizefan@huawei.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/jffs2/nodemgmt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index d2cac5153397..87044bcc4137 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -139,6 +139,7 @@ int jffs2_reserve_space(struct jffs2_sb_info *c, uint32_t minsize, spin_unlock(&c->erase_completion_lock); schedule(); + remove_wait_queue(&c->erase_wait, &wait); } else spin_unlock(&c->erase_completion_lock); } else if (ret) |