nfsd: call cache_put if xdr_reserve_space returns NULL
[ Upstream commit d078cbf5c38de83bc31f83c47dcd2184c04a50c7 ] If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Fixes: ddd1ea56 ("nfsd4: use xdr_reserve_space in attribute encoding") Signed-off-by:Guoqing Jiang <guoqing.jiang@linux.dev> Reviwed-by:
Jeff Layton <jlayton@kernel.org> Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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