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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>
This commit is contained in:
Bjorn Andersson 2017-12-12 15:58:55 -08:00
parent c12fc4519f
commit eb114f27fd
1 changed files with 2 additions and 2 deletions
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4
drivers/rpmsg/qcom_smd.c
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@ -579,7 +579,7 @@ static bool qcom_smd_channel_intr(struct qcom_smd_channel *channel)
/* Signal waiting qcom_smd_send() about the interrupt */ /* Signal waiting qcom_smd_send() about the interrupt */
if (!GET_TX_CHANNEL_FLAG(channel, fBLOCKREADINTR)) 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 */ /* Don't consume any data until we've opened the channel */
if (channel->state != SMD_CHANNEL_OPENED) 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); dev_dbg(&edge->dev, "new channel found: '%s'\n", channel->name);
set_bit(i, edge->allocated[tbl]); set_bit(i, edge->allocated[tbl]);
wake_up_interruptible(&edge->new_channel_event); wake_up_interruptible_all(&edge->new_channel_event);
} }
} }