ioport_map() may fail. Its safe to check the return value.
Signed-off-by: Varka Bhadram <[email protected]>
---
drivers/gpio/gpio-amd8111.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpio/gpio-amd8111.c b/drivers/gpio/gpio-amd8111.c
index 3c09f1a6..a0585c3 100644
--- 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;
--
1.7.9.5
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