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 

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 <>


Tested on Odroid U3 and XU3.
Not sure which commit introduced it so I am also not sure if this should
be cc-stable.
 drivers/crypto/s5p-sss.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index dce1af0ce85c..a668286d62cb 100644
--- 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;

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