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

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mike Lockwood 2010-04-17 12:01:35 -04:00 committed by Greg Kroah-Hartman
parent 16b6655438
commit 8bfe15f3de
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); struct timed_output_dev *tdev = dev_get_drvdata(dev);
int value; int value;
sscanf(buf, "%d", &value); if (sscanf(buf, "%d", &value) != 1)
return -EINVAL;
tdev->enable(tdev, value); tdev->enable(tdev, value);
return size; return size;