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 <lokeshvutla@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 3c76696ee57887569504f9644bd89acdcad0121a..21fd515068c5d23842c43292194959aff4b578ae 100644 (file)
--- 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);