diff options
| author | Azael Avalos <coproscefalo@gmail.com> | 2014-09-10 21:01:57 -0600 |
|---|---|---|
| committer | Darren Hart <dvhart@linux.intel.com> | 2014-09-17 13:55:52 -0700 |
| commit | c8a41669a76381f655f5567d3ccd8449a53f9a7f (patch) | |
| tree | 04c6b1e25fd9fe673064397b4e8e09183dd0055a | |
| parent | 12962878fbf9578b3d30ee4d8a5cd6632f26324c (diff) | |
toshiba_acpi: Change touchpad store to check for invalid values
The function toshiba_touchpad_store is not checking
for invalid values and simply returns silently.
This patch checks for invalid values and returns accordingly.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
| -rw-r--r-- | drivers/platform/x86/toshiba_acpi.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 4c8fa7b7289..2a84652a4f0 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -1343,12 +1343,18 @@ static ssize_t toshiba_touchpad_store(struct device *dev, { struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); int state; + int ret; /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */ - if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) { - if (toshiba_touchpad_set(toshiba, state) < 0) - return -EIO; - } + ret = kstrtoint(buf, 0, &state); + if (ret) + return ret; + if (state != 0 && state != 1) + return -EINVAL; + + ret = toshiba_touchpad_set(toshiba, state); + if (ret) + return ret; return count; } |