Commit cc4d110e authored Jul 21, 2017 by Ard Biesheuvel Committed by Herbert Xu Aug 03, 2017

crypto: scompress - free partially allocated scratch buffers on failure

When allocating the per-CPU scratch buffers, we allocate the source
and destination buffers separately, but bail immediately if the second
allocation fails, without freeing the first one. Fix that.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent 3c083772

crypto/scompress.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -125,9 +125,12 @@ static int crypto_scomp_alloc_all_scratches(void)
		if (!scomp_src_scratches)
		return -ENOMEM;
		scomp_dst_scratches = crypto_scomp_alloc_scratches();
		if (!scomp_dst_scratches)
		if (!scomp_dst_scratches) {
		crypto_scomp_free_scratches(scomp_src_scratches);
		scomp_src_scratches = NULL;
		return -ENOMEM;
		}
		}
		return 0;
		}