linux-kernel - [PATCH] mailbox: pcc: Avoid using the uninitialized variable 'dev'

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Message-Id: <20211209082143.619354-1-sudeep.holla@arm.com>
Date:   Thu,  9 Dec 2021 08:21:43 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Sudeep Holla <sudeep.holla@....com>, linux-acpi@...r.kernel.org,
        Jassi Brar <jassisinghbrar@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: [PATCH] mailbox: pcc: Avoid using the uninitialized variable 'dev'

Smatch static checker warns:

  |  drivers/mailbox/pcc.c:292 pcc_mbox_request_channel()
  |  error: uninitialized symbol 'dev'.

Fix the same by using pr_err instead of dev_err as the variable 'dev'
is uninitialized at that stage.

Fixes: ce028702ddbc ("mailbox: pcc: Move bulk of PCCT parsing into pcc_mbox_probe")
Cc: Jassi Brar <jassisinghbrar@...il.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Sudeep Holla <sudeep.holla@....com>
---
 drivers/mailbox/pcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 887a3704c12e..e0a1ab3861f0 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -289,7 +289,7 @@ 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;
-- 
2.25.1