[XFS] Propagate quota file truncation errors.

Truncating the quota files can silently fail. Ensure that truncation
errors are propagated to the callers.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30791a

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, 7 insertions, 8 deletions

diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 61cf68df547e..556018d24cad 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -380,12 +380,11 @@ xfs_qm_scall_trunc_qfiles(
         xfs_mount_t     *mp,
         uint            flags)
 {
-        int             error;
+        int             error = 0, error2 = 0;
         xfs_inode_t     *qip;
 
         if (!capable(CAP_SYS_ADMIN))
                 return XFS_ERROR(EPERM);
-        error = 0;
         if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
                 qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
                 return XFS_ERROR(EINVAL);
@@ -393,22 +392,22 @@ xfs_qm_scall_trunc_qfiles(
 
         if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
                 error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0);
-                if (! error) {
-                        (void) xfs_truncate_file(mp, qip);
+                if (!error) {
+                        error = xfs_truncate_file(mp, qip);
                         IRELE(qip);
                 }
         }
 
         if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) &&
             mp->m_sb.sb_gquotino != NULLFSINO) {
-                error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
-                if (! error) {
-                        (void) xfs_truncate_file(mp, qip);
+                error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
+                if (!error2) {
+                        error2 = xfs_truncate_file(mp, qip);
                         IRELE(qip);
                 }
         }
 
-        return (error);
+        return error ? error : error2;
 }