diff options
Diffstat (limited to 'drivers/mailbox/pcc.c')
| -rw-r--r-- | drivers/mailbox/pcc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c index e0a1ab3861f0..ed18936b8ce6 100644 --- a/drivers/mailbox/pcc.c +++ b/drivers/mailbox/pcc.c @@ -241,9 +241,11 @@ static irqreturn_t pcc_mbox_irq(int irq, void *p) if (ret) return IRQ_NONE; - val &= pchan->cmd_complete.status_mask; - if (!val) - return IRQ_NONE; + if (val) { /* Ensure GAS exists and value is non-zero */ + val &= pchan->cmd_complete.status_mask; + if (!val) + return IRQ_NONE; + } ret = pcc_chan_reg_read(&pchan->error, &val); if (ret) |