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>
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index a0ab0a8..dc948f6 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -368,7 +368,7 @@
{
struct ent ent, *res;
char *buf1;
- int error = -EINVAL;
+ int len, error = -EINVAL;
if (buf[buflen - 1] != '\n')
return (-EINVAL);
@@ -392,8 +392,8 @@
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));