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But dthe_get_dev uses the bh variant. Change spin_(un)lock to spin_(un)lock_bh to avoid potential deadlock when a softIRQ process tries to acquire the already held lock. Fixes: 52f641bc63a46 ("crypto: ti - Add driver for DTHE V2 AES Engine (ECB, CBC)") Signed-off-by: T Pratham --- drivers/crypto/ti/dthev2-common.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/crypto/ti/dthev2-common.c b/drivers/crypto/ti/dthev2-common.c index cb4b8b38a5ec8..8f8c4a93af616 100644 --- a/drivers/crypto/ti/dthev2-common.c +++ b/drivers/crypto/ti/dthev2-common.c @@ -154,9 +154,9 @@ static int dthe_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dev_data); - spin_lock(&dthe_dev_list.lock); + spin_lock_bh(&dthe_dev_list.lock); list_add(&dev_data->list, &dthe_dev_list.dev_list); - spin_unlock(&dthe_dev_list.lock); + spin_unlock_bh(&dthe_dev_list.lock); ret = dthe_dma_init(dev_data); if (ret) @@ -189,9 +189,9 @@ static int dthe_probe(struct platform_device *pdev) dma_release_channel(dev_data->dma_aes_tx); dma_release_channel(dev_data->dma_sha_tx); probe_dma_err: - spin_lock(&dthe_dev_list.lock); + spin_lock_bh(&dthe_dev_list.lock); list_del(&dev_data->list); - spin_unlock(&dthe_dev_list.lock); + spin_unlock_bh(&dthe_dev_list.lock); return ret; } @@ -200,9 +200,9 @@ static void dthe_remove(struct platform_device *pdev) { struct dthe_data *dev_data = platform_get_drvdata(pdev); - spin_lock(&dthe_dev_list.lock); + spin_lock_bh(&dthe_dev_list.lock); list_del(&dev_data->list); - spin_unlock(&dthe_dev_list.lock); + spin_unlock_bh(&dthe_dev_list.lock); dthe_unregister_algs(); -- 2.34.1