Due to the use of per-CPU buffers, scomp_acomp_comp_decomp() executes
with preemption disabled, and so whether the CRYPTO_TFM_REQ_MAY_SLEEP
flag is set is irrelevant, since we cannot sleep anyway. So disregard
the flag, and use GFP_ATOMIC unconditionally.
Cc: <stable@xxxxxxxxxxxxxxx> # v4.10+
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
crypto/scompress.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/crypto/scompress.c b/crypto/scompress.c
index ae1d3cf209e4..0b40d991d65f 100644
--- a/crypto/scompress.c
+++ b/crypto/scompress.c
@@ -211,9 +211,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir)
scratch_dst, &req->dlen, *ctx);
if (!ret) {
if (!req->dst) {
- req->dst = crypto_scomp_sg_alloc(req->dlen,
- req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
- GFP_KERNEL : GFP_ATOMIC);
+ req->dst = crypto_scomp_sg_alloc(req->dlen, GFP_ATOMIC);
if (!req->dst)
goto out;
}
--
2.11.0
