[PATCH] nfs: fix unchecked value

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Return value of "decode_attr_bitmap()" was not checked;

Signed-off-by: Roman Borisov <ext-roman.borisov@xxxxxxxxx>
---
 fs/nfs/nfs4xdr.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6ea5c93..9e9cb40 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2676,7 +2676,10 @@ out_overflow:
 static int decode_attr_supported(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *bitmask)
 {
 	if (likely(bitmap[0] & FATTR4_WORD0_SUPPORTED_ATTRS)) {
-		decode_attr_bitmap(xdr, bitmask);
+		int ret;
+		ret = decode_attr_bitmap(xdr, bitmask);
+		if (unlikely(ret < 0))
+			return ret;
 		bitmap[0] &= ~FATTR4_WORD0_SUPPORTED_ATTRS;
 	} else
 		bitmask[0] = bitmask[1] = 0;
-- 
1.7.0.4

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