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gpio-amd8111: check ioport_map return value
author
Varka Bhadram
<varkabhadram@gmail.com>
Mon, 29 Dec 2014 08:39:01 +0000
(14:09 +0530)
committer
Linus Walleij
<linus.walleij@linaro.org>
Thu, 15 Jan 2015 16:23:21 +0000
(17:23 +0100)
ioport_map() may fail. Its safe to check the return value.
Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
drivers/gpio/gpio-amd8111.c
patch
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diff --git
a/drivers/gpio/gpio-amd8111.c
b/drivers/gpio/gpio-amd8111.c
index
d3d2d10
..
2c4d9ab
100644
(file)
--- a/
drivers/gpio/gpio-amd8111.c
+++ b/
drivers/gpio/gpio-amd8111.c
@@
-213,6
+213,11
@@
found:
goto out;
}
gp.pm = ioport_map(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE);
+ if (!gp.pm) {
+ dev_err(&pdev->dev, "Couldn't map io port into io memory\n");
+ err = -ENOMEM;
+ goto out;
+ }
gp.pdev = pdev;
gp.chip.dev = &pdev->dev;