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| author | Johan Hovold <johan@kernel.org> | 2017-03-16 17:13:55 +0100 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2017-03-28 11:14:12 +0200 |
| commit | 6b0464c9d76bb6a3b192f6d518f7e5f510af72e8 (patch) | |
| tree | fc2524469d07cc5a8255514cd3623fe98748d6b8 /drivers/usb/serial/mxuport.c | |
| parent | bc4c2c15cbfc3747d0c14f547beb5d46cbe43641 (diff) | |
| download | linux-6b0464c9d76bb6a3b192f6d518f7e5f510af72e8.tar.gz | |
USB: serial: mxuport: add endpoint sanity check
Add an explicit sanity check to make sure we have the expected endpoints. This will provide a descriptive error message in case an expected endpoint is missing when probing. Note that the driver already gracefully fails to probe (albeit with a less descriptive error message) if a bulk-in endpoint is missing, and an attempt to write to a port whose device lack a bulk-out endpoint would fail with -ENODEV. Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/mxuport.c')
| -rw-r--r-- | drivers/usb/serial/mxuport.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c index 3355737cbfd1..34142feffd4d 100644 --- a/drivers/usb/serial/mxuport.c +++ b/drivers/usb/serial/mxuport.c @@ -1373,6 +1373,8 @@ static struct usb_serial_driver mxuport_device = { }, .description = "MOXA UPort", .id_table = mxuport_idtable, + .num_bulk_in = 2, + .num_bulk_out = 1, .probe = mxuport_probe, .port_probe = mxuport_port_probe, .attach = mxuport_attach, |