rpmsg: smd: Wake up all waiters

It's possible to have multiple contexts waiting for new channel events
and with an upcoming change it's possible to have multiple contexts
waiting for a full FIFO. As such we need to wake them all up.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c
index 1beddea..0993e95 100644 (file)
--- a/drivers/rpmsg/qcom_smd.c
+++ b/drivers/rpmsg/qcom_smd.c
@@ -579,7 +579,7 @@ static bool qcom_smd_channel_intr(struct qcom_smd_channel *channel)
 
        /* Signal waiting qcom_smd_send() about the interrupt */
        if (!GET_TX_CHANNEL_FLAG(channel, fBLOCKREADINTR))
-               wake_up_interruptible(&channel->fblockread_event);
+               wake_up_interruptible_all(&channel->fblockread_event);
 
        /* Don't consume any data until we've opened the channel */
        if (channel->state != SMD_CHANNEL_OPENED)
@@ -1191,7 +1191,7 @@ static void qcom_channel_scan_worker(struct work_struct *work)
                        dev_dbg(&edge->dev, "new channel found: '%s'\n", channel->name);
                        set_bit(i, edge->allocated[tbl]);
 
-                       wake_up_interruptible(&edge->new_channel_event);
+                       wake_up_interruptible_all(&edge->new_channel_event);
                }
        }