3.2.45-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Zhao Hongjiang <zhaohongjiang@xxxxxxxxxx>
commit 91d80a84bbc8f28375cca7e65ec666577b4209ad upstream.
dprintk() shouldn't access @ring after it's unmapped.
Signed-off-by: Zhao Hongjiang <zhaohongjiang@xxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
[bwh: Backported to 3.2: keep the second argument to kunmap_atomic()]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
fs/aio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1112,9 +1112,9 @@ static int aio_read_evt(struct kioctx *i
spin_unlock(&info->ring_lock);
out:
- kunmap_atomic(ring, KM_USER0);
dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret,
(unsigned long)ring->head, (unsigned long)ring->tail);
+ kunmap_atomic(ring, KM_USER0);
return ret;
}
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