diff options
| -rw-r--r-- | drivers/staging/greybus/loopback.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c index 6c62706bb94c..9b732a866455 100644 --- a/drivers/staging/greybus/loopback.c +++ b/drivers/staging/greybus/loopback.c @@ -148,6 +148,9 @@ static ssize_t name##_##field##_show(struct device *dev, \ char *buf) \ { \ struct gb_loopback *gb = dev_get_drvdata(dev); \ + /* Report 0 for min and max if no transfer successed */ \ + if (!gb->requests_completed) \ + return sprintf(buf, "0\n"); \ return sprintf(buf, "%"#type"\n", gb->name.field); \ } \ static DEVICE_ATTR_RO(name##_##field) |