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    Subject[11/71] eCryptfs: Unlock page in write_begin error path
    2.6.33-longterm review patch.  If anyone has any objections, please let us know.

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

    From: Tyler Hicks <tyhicks@linux.vnet.ibm.com>

    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 <tyhicks@linux.vnet.ibm.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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

    --- a/fs/ecryptfs/mmap.c
    +++ b/fs/ecryptfs/mmap.c
    @@ -372,6 +372,11 @@ 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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