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nfs: add error check in nfs_idmap_prepare_message() 

Even though the caller of nfs_idmap_prepare_message() checks return
code in their side but it's better to add an error check for match_int()
so that we can avoid unnecessary operations when bad int arg is
detected.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chengguang Xu 2018-06-28 11:09:45 +08:00 committed by Anna Schumaker
parent a61246c961
commit 12b289cfac
1 changed files with 2 additions and 0 deletions
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2
fs/nfs/nfs4idmap.c
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@ -516,6 +516,8 @@ static int nfs_idmap_prepare_message(char *desc, struct idmap *idmap,
case Opt_find_group:
im->im_conv = IDMAP_CONV_IDTONAME;
ret = match_int(&substr, &im->im_id);
if (ret)
goto out;
break;
default: