[lkml]   [2017]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH] crypto: s5p-sss - Fix completing crypto request in IRQ handler
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 <>


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;
 \ /
  Last update: 2017-03-05 18:14    [W:0.105 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site