@@ -294,6 +294,7 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
pr_err("Channel not found for idx: %d\n", subspace_id);
return ERR_PTR(-EBUSY);
}
+
dev = chan->mbox->dev;
spin_lock_irqsave(&chan->lock, flags);
@@ -735,7 +736,8 @@ static int __init pcc_init(void)
if (ret) {
pr_debug("ACPI PCC probe failed.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto out;
}
pcc_pdev = platform_create_bundle(&pcc_mbox_driver,
@@ -743,10 +745,13 @@ static int __init pcc_init(void)
if (IS_ERR(pcc_pdev)) {
pr_debug("Err creating PCC platform bundle\n");
- return PTR_ERR(pcc_pdev);
+ ret = PTR_ERR(pcc_pdev);
+ goto out;
}
- return 0;
+out:
+ pcc_chan_count = 0;
+ return ret;
}
/*
Currently, 'pcc_chan_count' is a non-zero value if PCC subspaces are parsed successfully and subsequent processes is failure during initializing PCC process. This may cause that pcc_mbox_request_channel() can still be executed successfully , which will misleads the caller that this channel is available. Fixes: ce028702ddbc ("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe") Signed-off-by: Huisong Li <lihuisong@huawei.com> --- drivers/mailbox/pcc.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)