diff options
| -rw-r--r-- | sound/usb/mixer_scarlett2.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 74bcecbd6923..ad92c3d1f8f5 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -1528,6 +1528,12 @@ static int scarlett2_usb_get_config( u8 *buf_8; u8 value; + /* Check that the configuration item is present in the + * configuration set used by this device + */ + if (!config_item->offset) + return -EFAULT; + /* For byte-sized parameters, retrieve directly into buf */ if (config_item->size >= 8) { size = config_item->size / 8 * count; @@ -1594,6 +1600,12 @@ static int scarlett2_usb_set_config( int offset, size; int err; + /* Check that the configuration item is present in the + * configuration set used by this device + */ + if (!config_item->offset) + return -EFAULT; + /* Cancel any pending NVRAM save */ cancel_delayed_work_sync(&private->work); |