From: Vutla, Lokesh Date: Tue, 31 Mar 2015 04:22:24 +0000 (+0530) Subject: crypto: omap-sham - Use pm_runtime_irq_safe() X-Git-Tag: firefly_0821_release~176^2~1973^2~48 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b0a3d8986a768c8b6a95ea6dd36e975bb3a44c44;p=firefly-linux-kernel-4.4.55.git crypto: omap-sham - Use pm_runtime_irq_safe() omap_sham_handle_queue() can be called as part of done_task tasklet. During this its atomic and any calls to pm functions cannot sleep. But there is a call to pm_runtime_get_sync() (which can sleep) in omap_sham_handle_queue(), because of which the following appears: " [ 116.169969] BUG: scheduling while atomic: kworker/0:2/2676/0x00000100" Add pm_runtime_irq_safe() to avoid this. Signed-off-by: Lokesh Vutla Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 3c76696ee578..21fd515068c5 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -1945,6 +1945,7 @@ static int omap_sham_probe(struct platform_device *pdev) dd->flags |= dd->pdata->flags; pm_runtime_enable(dev); + pm_runtime_irq_safe(dev); pm_runtime_get_sync(dev); rev = omap_sham_read(dd, SHA_REG_REV(dd)); pm_runtime_put_sync(&pdev->dev);