diff options
| author | Zhao Hongjiang <zhaohongjiang@huawei.com> | 2013-04-26 11:03:53 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-01 09:41:03 -0700 |
| commit | 6bcd3002a29b597e2774a733b74c204c1b344026 (patch) | |
| tree | dcc922057f94881f9deaa8339b068a8e4499bb44 /fs | |
| parent | a5a9e7c9c19b03b471d3ec148698e90a1958bfcb (diff) | |
aio: fix possible invalid memory access when DEBUG is enabled
commit 91d80a84bbc8f28375cca7e65ec666577b4209ad upstream.
dprintk() shouldn't access @ring after it's unmapped.
Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/aio.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1094,9 +1094,9 @@ static int aio_read_evt(struct kioctx *ioctx, struct io_event *ent) spin_unlock(&info->ring_lock); out: - kunmap_atomic(ring); dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret, (unsigned long)ring->head, (unsigned long)ring->tail); + kunmap_atomic(ring); return ret; } |