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Staging: android: timed_gpio: Properly discard invalid timeout values.

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The timed output device never previously checked the return value of sscanf,
resulting in an uninitialized int being passed to enable() if input value
was invalid.

Signed-off-by: Mike Lockwood <lockwood@android.com>
This commit is contained in:
Mike Lockwood 2010-04-17 12:01:35 -04:00
parent 0fc7f96b5b
commit a7f5cb901d
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/android/timed_output.c
View File

@ -41,7 +41,9 @@ static ssize_t enable_store(
struct timed_output_dev *tdev = dev_get_drvdata(dev);
int value;
sscanf(buf, "%d", &value);
if (sscanf(buf, "%d", &value) != 1)
return -EINVAL;
tdev->enable(tdev, value);
return size;