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crypto: atmel-sha - reject initialization without a device

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A transform may be initialized for the first time after the last
device has been removed from the driver list. Return -ENODEV when the
lookup is empty, before the debug message reads dd->dev.

Detected by static analysis and reviewed with AI-assisted source auditing.

Fixes: ebc82efa1c ("crypto: atmel - add Atmel SHA1/SHA256 driver")
Assisted-by: LLM
Signed-off-by: Slavin Liu <bolin.liu@seu.edu.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Slavin Liu 2026-09-13 20:51:43 +08:00 committed by Herbert Xu
parent be51ea091c
commit a9a2152d29
1 changed files with 3 additions and 0 deletions
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3
drivers/crypto/atmel-sha.c
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@ -422,6 +422,9 @@ static int atmel_sha_init(struct ahash_request *req)
struct atmel_sha_reqctx *ctx = ahash_request_ctx(req);
struct atmel_sha_dev *dd = atmel_sha_find_dev(tctx);
if (!dd)
return -ENODEV;
ctx->dd = dd;
ctx->flags = 0;