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Date: Fri, 11 Nov 2022 10:44:48 +0800
From: Huisong Li <lihuisong@...wei.com>
To: <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <rafael@...nel.org>, <sudeep.holla@....com>,
<rafael.j.wysocki@...el.com>, <wanghuiqiang@...wei.com>,
<zhangzekun11@...wei.com>, <wangxiongfeng2@...wei.com>,
<tanxiaofei@...wei.com>, <guohanjun@...wei.com>,
<xiexiuqi@...wei.com>, <wangkefeng.wang@...wei.com>,
<huangdaode@...wei.com>, <lihuisong@...wei.com>
Subject: [PATCH V2 2/2] mailbox: pcc: fix 'pcc_chan_count' when fail to initialize PCC
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@...wei.com>
---
drivers/mailbox/pcc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 3c2bc0ca454c..105d46c9801b 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -743,6 +743,7 @@ static int __init pcc_init(void)
if (IS_ERR(pcc_pdev)) {
pr_debug("Err creating PCC platform bundle\n");
+ pcc_chan_count = 0;
return PTR_ERR(pcc_pdev);
}
--
2.22.0
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