From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: "Enrico Weigelt, metux IT consult" <info@metux.net>
Cc: "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Eric Anholt" <eric@anholt.net>,
"Stefan Wahren" <stefan.wahren@i2se.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Ray Jui" <rjui@broadcom.com>,
"Scott Branden" <sbranden@broadcom.com>,
bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Vladimir Zapolskiy" <vz@mleia.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"Masahiro Yamada" <yamada.masahiro@socionext.com>,
"Tobias Klauser" <tklauser@distanz.ch>,
"Richard Genoud" <richard.genoud@gmail.com>,
macro@linux-mips.org,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Sascha Hauer" <kernel@pengutronix.de>,
slemieux.tyco@gmail.com, "Andy Gross" <andy.gross@linaro.org>,
"David Brown" <david.brown@linaro.org>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
dl-linux-imx <linux-imx@nxp.com>,
baohua@kernel.org, "Peter Korsgaard" <jacmet@sunsite.dk>,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
linux-arm-msm@vger.kernel.org,
"open list:LINUX FOR POWERPC PA SEMI PWRFICIENT"
<linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v2 45/45] drivers: tty: serial: mux: use devm_* functions
Date: Fri, 15 Mar 2019 11:08:01 +0200 [thread overview]
Message-ID: <CAHp75Vf1F_WQxNRiya=aTqFTEGWDVrD9JTr1VB4pOW0RayDmoA@mail.gmail.com> (raw)
In-Reply-To: <1552602855-26086-46-git-send-email-info@metux.net>
On Fri, Mar 15, 2019 at 12:37 AM Enrico Weigelt, metux IT consult
<info@metux.net> wrote:
>
> Use the safer devm versions of memory mapping functions.
If you are going to use devm_*_free(), what's the point to have this
change from the beginning?
P.S. Disregard that this is untested series...
> --- a/drivers/tty/serial/mux.c
> +++ b/drivers/tty/serial/mux.c
> @@ -456,8 +456,9 @@ static int __init mux_probe(struct parisc_device *dev)
> printk(KERN_INFO "Serial mux driver (%d ports) Revision: 0.6\n", port_count);
>
> dev_set_drvdata(&dev->dev, (void *)(long)port_count);
> - request_mem_region(dev->hpa.start + MUX_OFFSET,
> - port_count * MUX_LINE_OFFSET, "Mux");
> + devm_request_mem_region(&dev->dev,
> + dev->hpa.start + MUX_OFFSET,
> + port_count * MUX_LINE_OFFSET, "Mux");
...and on top of this where is error checking?
>
> if(!port_cnt) {
> mux_driver.cons = MUX_CONSOLE;
> @@ -474,7 +475,9 @@ static int __init mux_probe(struct parisc_device *dev)
> port->iobase = 0;
> port->mapbase = dev->hpa.start + MUX_OFFSET +
> (i * MUX_LINE_OFFSET);
> - port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
> + port->membase = devm_ioremap_nocache(port->dev,
> + port->mapbase,
> + MUX_LINE_OFFSET);
> port->iotype = UPIO_MEM;
> port->type = PORT_MUX;
> port->irq = 0;
> @@ -517,10 +520,12 @@ static int __exit mux_remove(struct parisc_device *dev)
>
> uart_remove_one_port(&mux_driver, port);
> if(port->membase)
> - iounmap(port->membase);
> + devm_iounmap(port->dev, port->membase);
> }
>
> - release_mem_region(dev->hpa.start + MUX_OFFSET, port_count * MUX_LINE_OFFSET);
> + devm_release_mem_region(&dev->dev,
> + dev->hpa.start + MUX_OFFSET,
> + port_count * MUX_LINE_OFFSET);
> return 0;
> }
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2019-03-15 9:08 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-14 22:33 serial driver cleanups v2 Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 01/45] drivers: tty: serial: 8250_bcm2835aux: use devm_platform_ioremap_resource() Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 02/45] drivers: tty: serial: 8250_dw: use devm_ioremap_resource() Enrico Weigelt, metux IT consult
2019-03-15 9:04 ` Andy Shevchenko
2019-03-15 9:37 ` Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 03/45] drivers: tty: serial: 8250_ingenic: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 04/45] drivers: tty: serial: amba-pl010: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 05/45] drivers: tty: serial: sirfsoc_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 06/45] drivers: tty: serial: samsung: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 07/45] drivers: tty: serial: 8250_uniphier: " Enrico Weigelt, metux IT consult
2019-03-18 7:44 ` Masahiro Yamada
2019-03-14 22:33 ` [PATCH v2 08/45] drivers: tty: serial: 8250_lpc18xx: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 09/45] drivers: tty: serial: 8250_mtk: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 10/45] drivers: tty: serial: zs: use devm_* functions Enrico Weigelt, metux IT consult
2019-03-14 22:52 ` Greg KH
2019-03-15 9:06 ` Enrico Weigelt, metux IT consult
2019-03-15 14:26 ` Greg KH
2019-03-15 19:12 ` Enrico Weigelt, metux IT consult
2019-03-16 3:26 ` Greg KH
2019-03-16 9:17 ` Enrico Weigelt, metux IT consult
2019-03-17 9:54 ` Greg KH
2019-03-18 8:03 ` Maciej W. Rozycki
2019-03-14 22:33 ` [PATCH v2 11/45] drivers: tty: serial: zs: use dev_err() instead of printk() Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 12/45] drivers: tty: serial: xilinx_uartps: use devm_* functions Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 13/45] drivers: tty: serial: 21285: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 14/45] drivers: tty: serial: vr41xx_siu: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 15/45] drivers: tty: serial: uartlite: use dev_err() instead of printk() Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 16/45] drivers: tty: serial: uartlite: use devm_* functions Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 17/45] drivers: tty: serial: timuart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 18/45] drivers: tty: serial: sirfsoc_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 19/45] drivers: tty: serial: sh-sci: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 20/45] drivers: tty: serial: msm_serial: " Enrico Weigelt, metux IT consult
2019-05-27 5:57 ` Bjorn Andersson
2019-03-14 22:33 ` [PATCH v2 21/45] drivers: tty: serial: altera_jtaguart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 22/45] drivers: tty: serial: altera_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 23/45] drivers: tty: serial: amba-pl010: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 24/45] drivers: tty: serial: mxs-auart: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 25/45] drivers: tty: serial: pxa: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 26/45] drivers: tty: serial: dz: use dev_err() instead of printk() Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 27/45] drivers: tty: serial: dz: use devm_* functions Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 28/45] drivers: tty: serial: netx-serial: " Enrico Weigelt, metux IT consult
2019-03-14 22:33 ` [PATCH v2 29/45] drivers: tty: serial: serial_txx9: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 30/45] drivers: tty: serial: serial_ks8695: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 31/45] drivers: tty: serial: amba-pl011: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 32/45] drivers: tty: serial: atmel_serial: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 33/45] drivers: tty: serial: sb1250-duart: use dev_err() instead of printk() Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 34/45] drivers: tty: serial: sb1250-duart: use devm_* functions Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 35/45] drivers: tty: serial: lpc32xx_hs: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 36/45] drivers: tty: serial: pic32_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 37/45] drivers: tty: serial: apbuart: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 38/45] drivers: tty: serial: samsung: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 39/45] drivers: tty: serial: efm32-uart: " Enrico Weigelt, metux IT consult
2019-03-15 7:46 ` Uwe Kleine-König
2019-03-14 22:34 ` [PATCH v2 40/45] drivers: tty: serial: mpc52xx_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 41/45] drivers: tty: serial: timuart: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 42/45] drivers: tty: serial: sa1100: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 43/45] drivers: tty: serial: pmac_zilog: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 44/45] drivers: tty: serial: pnx8xxx_uart: " Enrico Weigelt, metux IT consult
2019-03-14 22:34 ` [PATCH v2 45/45] drivers: tty: serial: mux: " Enrico Weigelt, metux IT consult
2019-03-15 9:08 ` Andy Shevchenko [this message]
2019-03-15 9:12 ` serial driver cleanups v2 Andy Shevchenko
2019-03-15 9:20 ` Andy Shevchenko
2019-03-15 10:36 ` Enrico Weigelt, metux IT consult
2019-03-15 18:11 ` Andy Shevchenko
2019-03-15 18:41 ` Enrico Weigelt, metux IT consult
2019-03-15 18:45 ` Andy Shevchenko
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