2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Tyler Hicks <[email protected]>

commit 50f198ae16ac66508d4b8d5a40967a8507ad19ee upstream.

Unlock the page in error path of ecryptfs_write_begin(). This may
happen, for example, if decryption fails while bring the page
up-to-date.

Signed-off-by: Tyler Hicks <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 fs/ecryptfs/mmap.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -374,6 +374,11 @@ static int ecryptfs_write_begin(struct f
            && (pos != 0))
                zero_user(page, 0, PAGE_CACHE_SIZE);
 out:
+       if (unlikely(rc)) {
+               unlock_page(page);
+               page_cache_release(page);
+               *pagep = NULL;
+       }
        return rc;
 }
 


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