diff options
| author | Li Zefan <lizefan@huawei.com> | 2014-02-12 12:44:57 -0800 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-05-05 14:24:44 +0200 |
| commit | 7b87da3a8a0491eed7eb8800ccd198a077c9601b (patch) | |
| tree | c12ce5e15c9809fc2aa4701986dfc922deca7180 | |
| parent | ff308965e7189645ad5f8343c145388002ac49fe (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: Jiri Slaby <jslaby@suse.cz>
| -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 41789e6fa6fe..b6bd4affd9ad 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -179,6 +179,7 @@ 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) |