diff options
| author | Johan Hovold <johan@hovoldconsulting.com> | 2016-05-27 17:26:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-05-27 12:24:17 -0700 |
| commit | 08f94352e8d09f7db07b4e894b3c223ee92df5ad (patch) | |
| tree | dbb2926d705f413e7cdcc76f6e37a716d584a26a /drivers/staging/greybus/control.c | |
| parent | e3fbe484323a026ed3689c72bac186ab2009dbcb (diff) | |
greybus: control: add error message to mode-switch helper
Print an informative error message in case sending the mode-switch
request fails.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/control.c')
| -rw-r--r-- | drivers/staging/greybus/control.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/staging/greybus/control.c b/drivers/staging/greybus/control.c index c5cdf3c8ccf8..3e02bbb5abfe 100644 --- a/drivers/staging/greybus/control.c +++ b/drivers/staging/greybus/control.c @@ -163,9 +163,18 @@ int gb_control_disconnecting_operation(struct gb_control *control, int gb_control_mode_switch_operation(struct gb_control *control) { - return gb_operation_unidirectional(control->connection, + int ret; + + ret = gb_operation_unidirectional(control->connection, GB_CONTROL_TYPE_MODE_SWITCH, NULL, 0); + if (ret) { + dev_err(&control->dev, "failed to send mode switch: %d\n", + ret); + return ret; + } + + return 0; } int gb_control_timesync_enable(struct gb_control *control, u8 count, |