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crypto: zstd - Fix compression bug caused by truncation

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Use size_t for the return value of zstd_compress_cctx as otherwise
negative errors will be truncated to a positive value.

Reported-by: Han Xu <han.xu@nxp.com>
Fixes: f5ad93ffb5 ("crypto: zstd - convert to acomp")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: David Sterba <dsterba@suse.com>
Tested-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2025-09-30 16:08:34 +08:00
parent 166c83f778
commit 81c1a15eb4
1 changed files with 1 additions and 1 deletions
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2
crypto/zstd.c
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@@ -83,7 +83,7 @@ static void zstd_exit(struct crypto_acomp *acomp_tfm)
static int zstd_compress_one(struct acomp_req *req, struct zstd_ctx *ctx, static int zstd_compress_one(struct acomp_req *req, struct zstd_ctx *ctx,
const void *src, void *dst, unsigned int *dlen) const void *src, void *dst, unsigned int *dlen)
{ {
unsigned int out_len; size_t out_len;
ctx->cctx = zstd_init_cctx(ctx->wksp, ctx->wksp_size); ctx->cctx = zstd_init_cctx(ctx->wksp, ctx->wksp_size);
if (!ctx->cctx) if (!ctx->cctx)