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crypto: stm32 - Remove unnecessary checks before calling memcpy

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memcpy() can be safely called with size 0, which is a no-op. Remove the
unnecessary checks before calling memcpy().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Thorsten Blum
2026-01-30 16:09:32 +08:00
committed by Herbert Xu
parent 279b837c1f
commit da166801d6
1 changed files with 2 additions and 4 deletions
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drivers/crypto/stm32/stm32-hash.c
+2 -4
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@@ -1115,8 +1115,7 @@ static int stm32_hash_copy_sgs(struct stm32_hash_request_ctx *rctx,
return -ENOMEM;
}
if (state->bufcnt)
memcpy(buf, rctx->hdev->xmit_buf, state->bufcnt);
memcpy(buf, rctx->hdev->xmit_buf, state->bufcnt);
scatterwalk_map_and_copy(buf + state->bufcnt, sg, rctx->offset,
min(new_len, rctx->total) - state->bufcnt, 0);
@@ -1300,8 +1299,7 @@ static int stm32_hash_prepare_request(struct ahash_request *req)
}
/* copy buffer in a temporary one that is used for sg alignment */
if (state->bufcnt)
memcpy(hdev->xmit_buf, state->buffer, state->bufcnt);
memcpy(hdev->xmit_buf, state->buffer, state->bufcnt);
ret = stm32_hash_align_sgs(req->src, nbytes, bs, init, final, rctx);
if (ret)