From: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@xxxxxxxxx>
---
drivers/crypto/omap-sham.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 804c16b..6399a8f 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1085,6 +1085,11 @@ static irqreturn_t omap_sham_irq(int irq, void *dev_id)
SHA_REG_CTRL_OUTPUT_READY);
omap_sham_read(dd, SHA_REG_CTRL);
+ if (!test_bit(FLAGS_BUSY, &dd->flags)) {
+ dev_warn(dd->dev, "Interrupt when no active requests.\n");
+ return IRQ_HANDLED;
+ }
+
set_bit(FLAGS_OUTPUT_READY, &dd->flags);
tasklet_schedule(&dd->done_task);
--
1.7.4.1
--
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