From 43b829b3c1aa8d4f748a8e68724df476d242365a Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 25 Jun 2013 10:08:49 +0900 Subject: [PATCH] serial: remove unnecessary platform_set_drvdata() The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han Acked-by: Barry Song Acked-by: Tony Prisk Acked-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/ar933x_uart.c | 1 - drivers/tty/serial/atmel_serial.c | 1 - drivers/tty/serial/bcm63xx_uart.c | 1 - drivers/tty/serial/clps711x.c | 11 ++--------- drivers/tty/serial/efm32-uart.c | 2 -- drivers/tty/serial/imx.c | 2 -- drivers/tty/serial/netx-serial.c | 2 -- drivers/tty/serial/pmac_zilog.c | 1 - drivers/tty/serial/pnx8xxx_uart.c | 2 -- drivers/tty/serial/pxa.c | 2 -- drivers/tty/serial/sa1100.c | 2 -- drivers/tty/serial/sccnxp.c | 3 --- drivers/tty/serial/sirfsoc_uart.c | 3 +-- drivers/tty/serial/vt8500_serial.c | 1 - 14 files changed, 3 insertions(+), 31 deletions(-) diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c index 27f20c57abed..9824dfb1e4fe 100644 --- a/drivers/tty/serial/ar933x_uart.c +++ b/drivers/tty/serial/ar933x_uart.c @@ -703,7 +703,6 @@ static int ar933x_uart_remove(struct platform_device *pdev) struct ar933x_uart_port *up; up = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); if (up) { uart_remove_one_port(&ar933x_uart_driver, &up->port); diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index 0e39facfcb07..5c17f8dac91b 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -1860,7 +1860,6 @@ static int atmel_serial_remove(struct platform_device *pdev) int ret = 0; device_init_wakeup(&pdev->dev, 0); - platform_set_drvdata(pdev, NULL); ret = uart_remove_one_port(&atmel_uart, port); diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index 6fa2ae77fffd..d14ba5aa2ec7 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -852,7 +852,6 @@ static int bcm_uart_remove(struct platform_device *pdev) port = platform_get_drvdata(pdev); uart_remove_one_port(&bcm_uart_driver, port); - platform_set_drvdata(pdev, NULL); /* mark port as free */ ports[pdev->id].membase = 0; return 0; diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c index bfb17968c8db..7e4e4088471c 100644 --- a/drivers/tty/serial/clps711x.c +++ b/drivers/tty/serial/clps711x.c @@ -438,8 +438,7 @@ static int uart_clps711x_probe(struct platform_device *pdev) s->uart_clk = devm_clk_get(&pdev->dev, "uart"); if (IS_ERR(s->uart_clk)) { dev_err(&pdev->dev, "Can't get UART clocks\n"); - ret = PTR_ERR(s->uart_clk); - goto err_out; + return PTR_ERR(s->uart_clk); } s->uart.owner = THIS_MODULE; @@ -461,7 +460,7 @@ static int uart_clps711x_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Registering UART driver failed\n"); devm_clk_put(&pdev->dev, s->uart_clk); - goto err_out; + return ret; } for (i = 0; i < UART_CLPS711X_NR; i++) { @@ -478,11 +477,6 @@ static int uart_clps711x_probe(struct platform_device *pdev) } return 0; - -err_out: - platform_set_drvdata(pdev, NULL); - - return ret; } static int uart_clps711x_remove(struct platform_device *pdev) @@ -495,7 +489,6 @@ static int uart_clps711x_remove(struct platform_device *pdev) devm_clk_put(&pdev->dev, s->uart_clk); uart_unregister_driver(&s->uart); - platform_set_drvdata(pdev, NULL); return 0; } diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c index 7d199c8e1a75..e029907cf430 100644 --- a/drivers/tty/serial/efm32-uart.c +++ b/drivers/tty/serial/efm32-uart.c @@ -778,8 +778,6 @@ static int efm32_uart_remove(struct platform_device *pdev) { struct efm32_uart_port *efm_port = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); - uart_remove_one_port(&efm32_uart_reg, &efm_port->port); if (pdev->id >= 0 && pdev->id < ARRAY_SIZE(efm32_uart_ports)) diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 2797e55d9753..40ca759d1f17 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1596,8 +1596,6 @@ static int serial_imx_remove(struct platform_device *pdev) pdata = pdev->dev.platform_data; - platform_set_drvdata(pdev, NULL); - uart_remove_one_port(&imx_reg, &sport->port); if (pdata && pdata->exit) diff --git a/drivers/tty/serial/netx-serial.c b/drivers/tty/serial/netx-serial.c index b9a40ed70be2..ce04f3f8c547 100644 --- a/drivers/tty/serial/netx-serial.c +++ b/drivers/tty/serial/netx-serial.c @@ -693,8 +693,6 @@ static int serial_netx_remove(struct platform_device *pdev) { struct netx_port *sport = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); - if (sport) uart_remove_one_port(&netx_reg, &sport->port); diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c index b1785f58b6e3..f87f1a0c8c6e 100644 --- a/drivers/tty/serial/pmac_zilog.c +++ b/drivers/tty/serial/pmac_zilog.c @@ -1798,7 +1798,6 @@ static int __exit pmz_detach(struct platform_device *pdev) uart_remove_one_port(&pmz_uart_reg, &uap->port); - platform_set_drvdata(pdev, NULL); uap->port.dev = NULL; return 0; diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c index 7e277a5384a7..b6b7aca5707a 100644 --- a/drivers/tty/serial/pnx8xxx_uart.c +++ b/drivers/tty/serial/pnx8xxx_uart.c @@ -801,8 +801,6 @@ static int pnx8xxx_serial_remove(struct platform_device *pdev) { struct pnx8xxx_port *sport = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); - if (sport) uart_remove_one_port(&pnx8xxx_reg, &sport->port); diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c index 05f504e0c271..ac8b2f5b2396 100644 --- a/drivers/tty/serial/pxa.c +++ b/drivers/tty/serial/pxa.c @@ -945,8 +945,6 @@ static int serial_pxa_remove(struct platform_device *dev) { struct uart_pxa_port *sport = platform_get_drvdata(dev); - platform_set_drvdata(dev, NULL); - uart_remove_one_port(&serial_pxa_reg, &sport->port); clk_unprepare(sport->clk); diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c index af6b3e3ad24d..fc23ea19073a 100644 --- a/drivers/tty/serial/sa1100.c +++ b/drivers/tty/serial/sa1100.c @@ -864,8 +864,6 @@ static int sa1100_serial_remove(struct platform_device *pdev) { struct sa1100_port *sport = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); - if (sport) uart_remove_one_port(&sa1100_reg, &sport->port); diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c index c77304155410..98555179fe10 100644 --- a/drivers/tty/serial/sccnxp.c +++ b/drivers/tty/serial/sccnxp.c @@ -997,8 +997,6 @@ static int sccnxp_probe(struct platform_device *pdev) } err_out: - platform_set_drvdata(pdev, NULL); - return ret; } @@ -1016,7 +1014,6 @@ static int sccnxp_remove(struct platform_device *pdev) uart_remove_one_port(&s->uart, &s->port[i]); uart_unregister_driver(&s->uart); - platform_set_drvdata(pdev, NULL); if (!IS_ERR(s->regulator)) return regulator_disable(s->regulator); diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c index 1fd564b8194b..67a0d1b8341c 100644 --- a/drivers/tty/serial/sirfsoc_uart.c +++ b/drivers/tty/serial/sirfsoc_uart.c @@ -717,7 +717,6 @@ int sirfsoc_uart_probe(struct platform_device *pdev) clk_disable_unprepare(sirfport->clk); clk_put(sirfport->clk); clk_err: - platform_set_drvdata(pdev, NULL); if (sirfport->hw_flow_ctrl) pinctrl_put(sirfport->p); err: @@ -728,7 +727,7 @@ static int sirfsoc_uart_remove(struct platform_device *pdev) { struct sirfsoc_uart_port *sirfport = platform_get_drvdata(pdev); struct uart_port *port = &sirfport->port; - platform_set_drvdata(pdev, NULL); + if (sirfport->hw_flow_ctrl) pinctrl_put(sirfport->p); clk_disable_unprepare(sirfport->clk); diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 48af43de3467..a90bf0440b4f 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -630,7 +630,6 @@ static int vt8500_serial_remove(struct platform_device *pdev) { struct vt8500_port *vt8500_port = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); clk_disable_unprepare(vt8500_port->clk); uart_remove_one_port(&vt8500_uart_driver, &vt8500_port->uart); -- GitLab