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crypto: picoxcell - adjust the position of tasklet_init and fix missed tasklet_kill

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commit 7f8c36fe9be46862c4f3c5302f769378028a34fa upstream.

Since tasklet is needed to be initialized before registering IRQ
handler, adjust the position of tasklet_init to fix the wrong order.

Besides, to fix the missed tasklet_kill, this patch adds a helper
function and uses devm_add_action to kill the tasklet automatically.

Fixes: ce92136843 ("crypto: picoxcell - add support for the picoxcell crypto engines")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chuhong Yuan 2019-12-10 00:21:44 +08:00 • committed by Greg Kroah-Hartman
parent aa2862a427
commit f98c063f1c
1 changed files with 13 additions and 2 deletions
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15
drivers/crypto/picoxcell_crypto.c
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@ -1610,6 +1610,11 @@ static bool spacc_is_compatible(struct platform_device *pdev,
return false;
}
static void spacc_tasklet_kill(void *data)
{
tasklet_kill(data);
}
static int spacc_probe(struct platform_device *pdev)
{
int i, err, ret = -EINVAL;
@ -1652,6 +1657,14 @@ static int spacc_probe(struct platform_device *pdev)
return -ENXIO;
}
tasklet_init(&engine->complete, spacc_spacc_complete,
(unsigned long)engine);
ret = devm_add_action(&pdev->dev, spacc_tasklet_kill,
&engine->complete);
if (ret)
return ret;
if (devm_request_irq(&pdev->dev, irq->start, spacc_spacc_irq, 0,
engine->name, engine)) {
dev_err(engine->dev, "failed to request IRQ\n");
@ -1714,8 +1727,6 @@ static int spacc_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&engine->completed);
INIT_LIST_HEAD(&engine->in_progress);
engine->in_flight = 0;
tasklet_init(&engine->complete, spacc_spacc_complete,
(unsigned long)engine);
platform_set_drvdata(pdev, engine);