diff options
| author | Evgeny Novikov <novikov@ispras.ru> | 2020-08-05 12:06:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-03 11:19:26 +0200 |
| commit | e35d476bca93c276aeaa481d4b4da0eb21c50b80 (patch) | |
| tree | fbbdff64200089640d629b0a7389835ada183dcd /drivers/usb/misc/lvstest.c | |
| parent | ae021a904ac82d9fc81c25329d3c465c5a7d5686 (diff) | |
USB: lvtest: return proper error code in probe
commit 531412492ce93ea29b9ca3b4eb5e3ed771f851dd upstream.
lvs_rh_probe() can return some nonnegative value from usb_control_msg()
when it is less than "USB_DT_HUB_NONVAR_SIZE + 2" that is considered as
a failure. Make lvs_rh_probe() return -EINVAL in this case.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200805090643.3432-1-novikov@ispras.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc/lvstest.c')
| -rw-r--r-- | drivers/usb/misc/lvstest.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/lvstest.c b/drivers/usb/misc/lvstest.c index 383fa007348f..bda82e63c1a9 100644 --- a/drivers/usb/misc/lvstest.c +++ b/drivers/usb/misc/lvstest.c @@ -396,7 +396,7 @@ static int lvs_rh_probe(struct usb_interface *intf, USB_DT_SS_HUB_SIZE, USB_CTRL_GET_TIMEOUT); if (ret < (USB_DT_HUB_NONVAR_SIZE + 2)) { dev_err(&hdev->dev, "wrong root hub descriptor read %d\n", ret); - return ret; + return ret < 0 ? ret : -EINVAL; } /* submit urb to poll interrupt endpoint */ |