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Commit ff349505 authored by Richard Röjfors's avatar Richard Röjfors Committed by Greg Kroah-Hartman
Browse files

USB: gadget rndis: send notifications 



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: default avatarRichard Röjfors <richard.rojfors@endian.se>
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 9c264521

drivers/usb/gadget/f_rndis.c

+1 −1
Original line number Diff line number Diff line
@@ -302,7 +302,7 @@ 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