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crypto: img-hash - use list_first_entry_or_null to simplify digest

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Use list_first_entry_or_null() to simplify img_hash_digest() and remove
the now-unused local 'struct img_hash_dev *' variables. Use 'ctx->hdev'
when calling img_hash_handle_queue() instead of 'tctx->hdev'.

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
2026-04-03 08:56:13 +08:00
committed by Herbert Xu
parent cdadc14359
commit 3a31b7fda6
1 changed files with 6 additions and 15 deletions
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drivers/crypto/img-hash.c
+6 -15
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@@ -629,24 +629,15 @@ static int img_hash_digest(struct ahash_request *req)
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct img_hash_ctx *tctx = crypto_ahash_ctx(tfm);
struct img_hash_request_ctx *ctx = ahash_request_ctx(req);
struct img_hash_dev *hdev = NULL;
struct img_hash_dev *tmp;
int err;
spin_lock(&img_hash.lock);
if (!tctx->hdev) {
list_for_each_entry(tmp, &img_hash.dev_list, list) {
hdev = tmp;
break;
}
tctx->hdev = hdev;
} else {
hdev = tctx->hdev;
}
if (!tctx->hdev)
tctx->hdev = list_first_entry_or_null(&img_hash.dev_list,
struct img_hash_dev, list);
ctx->hdev = tctx->hdev;
spin_unlock(&img_hash.lock);
ctx->hdev = hdev;
ctx->flags = 0;
ctx->digsize = crypto_ahash_digestsize(tfm);
@@ -675,7 +666,7 @@ static int img_hash_digest(struct ahash_request *req)
ctx->sgfirst = req->src;
ctx->nents = sg_nents(ctx->sg);
err = img_hash_handle_queue(tctx->hdev, req);
err = img_hash_handle_queue(ctx->hdev, req);
return err;
}