linux-kernel - [PATCH] mxser: Use non-hybrid PCI devres API

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250417081333.20917-2-phasta@kernel.org>
Date: Thu, 17 Apr 2025 10:13:34 +0200
From: Philipp Stanner <phasta@...nel.org>
To: Jiri Slaby <jirislaby@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	Philipp Stanner <phasta@...nel.org>
Subject: [PATCH] mxser: Use non-hybrid PCI devres API

mxser enables its PCI device with pcim_enable_device(). This,
implicitly, switches the function pci_request_region() into managed
mode, where it becomes a devres function.

The PCI subsystem wants to remove this hybrid nature from its
interfaces. To do so, users of the aforementioned combination of
functions must be ported to non-hybrid functions.

Replace the call to sometimes-managed pci_request_region() with one to
the always-managed pcim_request_region().

Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
 drivers/tty/mxser.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 4d45eca4929a..2fc13cc02cc5 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1812,7 +1812,7 @@ static int mxser_probe(struct pci_dev *pdev,
 
 	/* io address */
 	ioaddress = pci_resource_start(pdev, 2);
-	retval = pci_request_region(pdev, 2, "mxser(IO)");
+	retval = pcim_request_region(pdev, 2, "mxser(IO)");
 	if (retval)
 		goto err_zero;
 
@@ -1822,7 +1822,7 @@ static int mxser_probe(struct pci_dev *pdev,
 
 	/* vector */
 	ioaddress = pci_resource_start(pdev, 3);
-	retval = pci_request_region(pdev, 3, "mxser(vector)");
+	retval = pcim_request_region(pdev, 3, "mxser(vector)");
 	if (retval)
 		goto err_zero;
 	brd->vector = ioaddress;
-- 
2.48.1