From: Chuhong Yuan hslester96@gmail.com
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: ce92136843cb ("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 Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/crypto/picoxcell_crypto.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c index 321d5e2..e249175 100644 --- a/drivers/crypto/picoxcell_crypto.c +++ b/drivers/crypto/picoxcell_crypto.c @@ -1616,6 +1616,11 @@ static DEVICE_ATTR(stat_irq_thresh, 0644, spacc_stat_irq_thresh_show, MODULE_DEVICE_TABLE(of, spacc_of_id_table); #endif /* CONFIG_OF */
+static void spacc_tasklet_kill(void *data) +{ + tasklet_kill(data); +} + static int spacc_probe(struct platform_device *pdev) { int i, err, ret; @@ -1659,6 +1664,14 @@ 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"); @@ -1716,8 +1729,6 @@ 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);