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| 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/module.c | |
| parent | 62491622db9c9b6a51630f4c8c653f59c2c834f9 (diff) | |
| download | linux-12169bc9143ed24ad7a5ea12a7c28d1dba891131.tar.gz linux-12169bc9143ed24ad7a5ea12a7c28d1dba891131.tar.bz2 linux-12169bc9143ed24ad7a5ea12a7c28d1dba891131.zip | |
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/module.c')
| -rw-r--r-- | drivers/staging/greybus/module.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c index d506fa0b3272..69f67ddbd4a3 100644 --- a/drivers/staging/greybus/module.c +++ b/drivers/staging/greybus/module.c @@ -186,6 +186,7 @@ static void gb_module_deregister_interface(struct gb_interface *intf) intf->disconnected = true; mutex_lock(&intf->mutex); + intf->removed = true; gb_interface_disable(intf); gb_interface_deactivate(intf); mutex_unlock(&intf->mutex); |