NFSD: Fix bad using of return value from qword_get

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index a0ab0a847d69..dc948f667650 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -368,7 +368,7 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
 {
         struct ent ent, *res;
         char *buf1;
-        int error = -EINVAL;
+        int len, error = -EINVAL;
 
         if (buf[buflen - 1] != '\n')
                 return (-EINVAL);
@@ -392,8 +392,8 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
                 IDMAP_TYPE_USER : IDMAP_TYPE_GROUP;
 
         /* Name */
-        error = qword_get(&buf, buf1, PAGE_SIZE);
-        if (error <= 0 || error >= IDMAP_NAMESZ)
+        len = qword_get(&buf, buf1, PAGE_SIZE);
+        if (len <= 0 || len >= IDMAP_NAMESZ)
                 goto out;
         memcpy(ent.name, buf1, sizeof(ent.name));