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| author | Ofir Drang <ofir.drang@arm.com> | 2019-06-17 11:46:29 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-06-27 14:28:00 +0800 |
| commit | 3db617e77ae2f8051fd6f5d3fff0e15f086d5b4c (patch) | |
| tree | f44c64fa8ad02b19bd62575b3d5ba84ecd88c69a /drivers/crypto/ccree/cc_driver.c | |
| parent | d84f6269ce24eb4c468e246b24fc0fdce34ab6f6 (diff) | |
| download | linux-3db617e77ae2f8051fd6f5d3fff0e15f086d5b4c.tar.bz2 | |
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 <ofir.drang@arm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccree/cc_driver.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_driver.c | 3 |
1 files changed, 3 insertions, 0 deletions
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)); |