[XFS] Ensure errors from xfs_bdstrat() are correctly checked.

xfsbdstrat() is declared to return an error. That is never checked because
the error is propagated by the xfs_buf_t that is passed through the
function.

Mark xfsbdstrat() as returning void and comment the prototype on the
methods needed for error checking.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30823a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index ca38fb9a993..dd4621e0ab3 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -3825,7 +3825,8 @@ xfs_zero_remaining_bytes(
                 XFS_BUF_READ(bp);
                 XFS_BUF_SET_ADDR(bp, XFS_FSB_TO_DB(ip, imap.br_startblock));
                 xfsbdstrat(mp, bp);
-                if ((error = xfs_iowait(bp))) {
+                error = xfs_iowait(bp);
+                if (error) {
                         xfs_ioerror_alert("xfs_zero_remaining_bytes(read)",
                                           mp, bp, XFS_BUF_ADDR(bp));
                         break;
@@ -3837,7 +3838,8 @@ xfs_zero_remaining_bytes(
                 XFS_BUF_UNREAD(bp);
                 XFS_BUF_WRITE(bp);
                 xfsbdstrat(mp, bp);
-                if ((error = xfs_iowait(bp))) {
+                error = xfs_iowait(bp);
+                if (error) {
                         xfs_ioerror_alert("xfs_zero_remaining_bytes(write)",
                                           mp, bp, XFS_BUF_ADDR(bp));
                         break;