xfs: Check the return value of xfs_trans_get_buf()

Check the return value of xfs_trans_get_buf() and fail
appropriately.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 8fad9602542b..58c3add07b65 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -2948,6 +2948,8 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
                         bp = xfs_trans_get_buf(*trans,
                                         dp->i_mount->m_ddev_targp,
                                         dblkno, dblkcnt, XBF_LOCK);
+                        if (!bp)
+                                return ENOMEM;
                         xfs_trans_binval(*trans, bp);
                         /*
                          * Roll to next transaction.