mailbox: check for bit set before polling

Before polling we just need to see if the TXDONE_BY_POLL bit
is set in txdone_method. There may be another bit (method)
specified as well, like TXDONE_BY_ACK.

Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>

diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index 59aad4d5da5321ab2d6e7b6688c0fd0238b2210e..19b491d2964f313744513920803e1c327305d7f9 100644 (file)
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -87,7 +87,7 @@ static void msg_submit(struct mbox_chan *chan)
 exit:
        spin_unlock_irqrestore(&chan->lock, flags);
 
-       if (!err && chan->txdone_method == TXDONE_BY_POLL)
+       if (!err && (chan->txdone_method & TXDONE_BY_POLL))
                poll_txdone((unsigned long)chan->mbox);
 }