brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

serial: mxs-auart: add missed iounmap() in probe failure and remove 

commit d8edf8eb5f6e921fe6389f96d2cd05862730a6ff upstream.

This driver calls ioremap() in probe, but it misses calling iounmap() in
probe's error handler and remove.
Add the missed calls to fix it.

Fixes: 47d37d6f94 ("serial: Add auart driver for i.MX23/28")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200709135608.68290-1-hslester96@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chuhong Yuan 2020-07-09 21:56:08 +08:00 committed by Greg Kroah-Hartman
parent 752641ba87
commit 2cd065b916
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/tty/serial/mxs-auart.c
View File

@ -1701,21 +1701,21 @@ static int mxs_auart_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
ret = irq;
goto out_disable_clks;
goto out_iounmap;
}
s->port.irq = irq;
ret = devm_request_irq(&pdev->dev, irq, mxs_auart_irq_handle, 0,
dev_name(&pdev->dev), s);
if (ret)
goto out_disable_clks;
goto out_iounmap;
platform_set_drvdata(pdev, s);
ret = mxs_auart_init_gpios(s, &pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Failed to initialize GPIOs.\n");
goto out_disable_clks;
goto out_iounmap;
}
/*
@ -1723,7 +1723,7 @@ static int mxs_auart_probe(struct platform_device *pdev)
*/
ret = mxs_auart_request_gpio_irq(s);
if (ret)
goto out_disable_clks;
goto out_iounmap;
auart_port[s->port.line] = s;
@ -1749,6 +1749,9 @@ out_free_qpio_irq:
mxs_auart_free_gpio_irq(s);
auart_port[pdev->id] = NULL;
out_iounmap:
iounmap(s->port.membase);
out_disable_clks:
if (is_asm9260_auart(s)) {
clk_disable_unprepare(s->clk);
@ -1764,6 +1767,7 @@ static int mxs_auart_remove(struct platform_device *pdev)
uart_remove_one_port(&auart_driver, &s->port);
auart_port[pdev->id] = NULL;
mxs_auart_free_gpio_irq(s);
iounmap(s->port.membase);
if (is_asm9260_auart(s)) {
clk_disable_unprepare(s->clk);
clk_disable_unprepare(s->clk_ahb);