Commit 6a4d1b18 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Herbert Xu

crypto: scompress - return proper error code for allocation failure

If scomp_acomp_comp_decomp() fails to allocate memory for the
destination then we never copy back the data we compressed.
It is probably best to return an error code instead 0 in case of
failure.
I haven't found any user that is using acomp_request_set_params()
without the `dst' buffer so there is probably no harm.
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d6112ea0
......@@ -171,9 +171,11 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
if (!ret) {
if (!req->dst) {
req->dst = sgl_alloc(req->dlen, GFP_ATOMIC, NULL);
if (!req->dst)
if (!req->dst) {
ret = -ENOMEM;
goto out;
}
}
scatterwalk_map_and_copy(scratch_dst, req->dst, 0, req->dlen,
1);
}
......
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