diff options
| author | Richard Röjfors <richard.rojfors@endian.se> | 2008-11-15 19:53:24 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-12-05 10:55:08 -0800 |
| commit | 2ab3bef821648fb04dec72b240da8f572ec597db (patch) | |
| tree | 13787f0ee928e282e40293c311e7349a1288e917 /drivers | |
| parent | 7e35c8503968979d55c71de29445c66eeb024284 (diff) | |
USB: gadget rndis: send notifications
commit ff3495052af48f7a2bf7961b131dc9e161dae19c upstream.
It turns out that atomic_inc_return() returns the *new* value
not the original one, so the logic in rndis_response_available()
kept the first RNDIS response notification from getting out.
This prevented interoperation with MS-Windows (but not Linux).
Fix this to make RNDIS behave again.
Signed-off-by: Richard Röjfors <richard.rojfors@endian.se>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/f_rndis.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 659b3d9671c4..00dfbbeb28c2 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -303,7 +303,7 @@ static void rndis_response_available(void *_rndis) __le32 *data = req->buf; int status; - if (atomic_inc_return(&rndis->notify_count)) + if (atomic_inc_return(&rndis->notify_count) != 1) return; /* Send RNDIS RESPONSE_AVAILABLE notification; a |