diff options
| -rw-r--r-- | 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 804c16bc2d6..6399a8f1938 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); |