mailbox: pcc: Handle all PCC subtypes correctly in pcc_mbox_irq

[linux-block.git] / drivers / mailbox / pcc.c

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 887a3704c12ec610a443f50f7514cdda10b99ca1..ed18936b8ce686ecc290711d8305d8dbff8ff41d 100644 (file)
--- 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)
@@ -289,7 +291,7 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
        pchan = chan_info + subspace_id;
        chan = pchan->chan.mchan;
        if (IS_ERR(chan) || chan->cl) {
-               dev_err(dev, "Channel not found for idx: %d\n", subspace_id);
+               pr_err("Channel not found for idx: %d\n", subspace_id);
                return ERR_PTR(-EBUSY);
        }
        dev = chan->mbox->dev;