diff options
| author | Johan Hovold <johan@hovoldconsulting.com> | 2016-07-20 16:40:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-07-20 10:16:54 -0700 |
| commit | 12169bc9143ed24ad7a5ea12a7c28d1dba891131 (patch) | |
| tree | c940d71ec18aa1fd6dcf08d48d17d15bcc5242a2 /drivers/staging/greybus/interface.c | |
| parent | 62491622db9c9b6a51630f4c8c653f59c2c834f9 (diff) | |
greybus: interface: prevent reactivation during removal
Make sure to prevent an interface that is going away from being
reactivated.
This is needed to preemptively close a race between the upcoming feature
to reactivate a powered-down interface and physical removal (i.e.
module_removed event processing) as well as logical removal (e.g. the
current system-suspend hack).
Reviewed-by: Sandeep Patil <sspatil@google.com>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Patrick Titiano <ptitiano@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/interface.c')
| -rw-r--r-- | drivers/staging/greybus/interface.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/greybus/interface.c b/drivers/staging/greybus/interface.c index 01cefced7b69..3ad1c757d7e7 100644 --- a/drivers/staging/greybus/interface.c +++ b/drivers/staging/greybus/interface.c @@ -873,7 +873,7 @@ static int _gb_interface_activate(struct gb_interface *intf, *type = GB_INTERFACE_TYPE_UNKNOWN; - if (intf->ejected) + if (intf->ejected || intf->removed) return -ENODEV; ret = gb_interface_vsys_set(intf, true); |