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crypto: omap-sham - Use pm_runtime_irq_safe()

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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>
This commit is contained in:
Vutla, Lokesh 2015-03-31 09:52:24 +05:30 committed by Herbert Xu
parent 555fa17b2b
commit b0a3d8986a
1 changed files with 1 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/crypto/omap-sham.c
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@ -1945,6 +1945,7 @@ static int omap_sham_probe(struct platform_device *pdev)
dd->flags |= dd->pdata->flags; dd->flags |= dd->pdata->flags;
pm_runtime_enable(dev); pm_runtime_enable(dev);
pm_runtime_irq_safe(dev);
pm_runtime_get_sync(dev); pm_runtime_get_sync(dev);
rev = omap_sham_read(dd, SHA_REG_REV(dd)); rev = omap_sham_read(dd, SHA_REG_REV(dd));
pm_runtime_put_sync(&pdev->dev); pm_runtime_put_sync(&pdev->dev);