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: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index dce1af0..a668286 100644 (file)
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -805,8 +805,9 @@ 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;