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Commit 3d9f055c authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Greg Kroah-Hartman
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crypto: s5p-sss - Fix completing crypto request in IRQ handler 




[ Upstream commit 07de4bc88ce6a4d898cad9aa4c99c1df7e87702d ]

In a regular interrupt handler driver was finishing the crypt/decrypt
request by calling complete on crypto request.  This is disallowed since
converting to skcipher in commit b286d8b1a690 ("crypto: skcipher - Add
skcipher walk interface") and causes a warning:
	WARNING: CPU: 0 PID: 0 at crypto/skcipher.c:430 skcipher_walk_first+0x13c/0x14c

The interrupt is marked shared but in fact there are no other users
sharing it.  Thus the simplest solution seems to be to just use a
threaded interrupt handler, after converting it to oneshot.

Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c1351ce0

drivers/crypto/s5p-sss.c

+3 −2
Original line number Diff line number Diff line
@@ -682,8 +682,9 @@ static int s5p_aes_probe(struct platform_device *pdev) 
		dev_warn(dev, "feed control interrupt is not available.\n");

		goto err_irq;

	}

	err = devm_request_irq(dev, pdata->irq_fc, s5p_aes_interrupt,

			       IRQF_SHARED, pdev->name, pdev);

	err = devm_request_threaded_irq(dev, pdata->irq_fc, NULL,

					s5p_aes_interrupt, IRQF_ONESHOT,

					pdev->name, pdev);

	if (err < 0) {

		dev_warn(dev, "feed control interrupt is not available.\n");

		goto err_irq;