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gpio-amd8111: check ioport_map return value
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
gpio
/
gpio-amd8111.c
diff --git
a/drivers/gpio/gpio-amd8111.c
b/drivers/gpio/gpio-amd8111.c
index d3d2d1099f645b75ed39ab5a5ac110d66bad5691..2c4d9ab34accd148c5b38d70c7820f6ae86242ed 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;