Commit 6c5dd86f authored Oct 04, 2017 by Chris Lew

mailbox: msm_qmp: Return EAGAIN on failed tx



The mailbox framework will only try to requeue a failed tx when EAGAIN
is returned by the mailbox controller. Return EAGAIN when the mailbox
is full.

Change-Id: I54b73497ec1983e61abbedec3d9c9c648f7e38a2
Signed-off-by: Chris Lew <clew@codeaurora.org>

parent e13b7564

drivers/mailbox/msm_qmp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -359,7 +359,7 @@ static int qmp_send_data(struct mbox_chan chan, void data)
		addr = mdev->msgram + mbox->mcore_mbox_offset;
		if (mbox->tx_sent) {
		spin_unlock_irqrestore(&mbox->tx_lock, flags);
		return -EBUSY;
		return -EAGAIN;
		}

		if (pkt->size + sizeof(pkt->size) > mbox->mcore_mbox_size) {