From 3db617e77ae2f8051fd6f5d3fff0e15f086d5b4c Mon Sep 17 00:00:00 2001 From: Ofir Drang Date: Mon, 17 Jun 2019 11:46:29 +0300 Subject: crypto: ccree - prevent isr handling in case driver is suspended ccree irq may be shared with other devices, in order to prevent ccree isr handling while device maybe suspended we added a check to verify that the device is not suspended. Signed-off-by: Ofir Drang Signed-off-by: Herbert Xu --- drivers/crypto/ccree/cc_driver.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/crypto/ccree/cc_driver.c') diff --git a/drivers/crypto/ccree/cc_driver.c b/drivers/crypto/ccree/cc_driver.c index 1e73d32148dd..667bc73d7a00 100644 --- a/drivers/crypto/ccree/cc_driver.c +++ b/drivers/crypto/ccree/cc_driver.c @@ -134,6 +134,9 @@ static irqreturn_t cc_isr(int irq, void *dev_id) u32 imr; /* STAT_OP_TYPE_GENERIC STAT_PHASE_0: Interrupt */ + /* if driver suspended return, probebly shared interrupt */ + if (cc_pm_is_dev_suspended(dev)) + return IRQ_NONE; /* read the interrupt status */ irr = cc_ioread(drvdata, CC_REG(HOST_IRR)); -- cgit v1.2.3