diff options
Diffstat (limited to 'drivers/rpmsg/qcom_smd.c')
| -rw-r--r-- | drivers/rpmsg/qcom_smd.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 0993e95bf0f5..ed167ab52a68 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -743,17 +743,13 @@ static int __qcom_smd_send(struct qcom_smd_channel *channel, const void *data, if (ret) return ret; - while (qcom_smd_get_tx_avail(channel) < tlen) { + while (qcom_smd_get_tx_avail(channel) < tlen && + channel->state == SMD_CHANNEL_OPENED) { if (!wait) { ret = -EAGAIN; goto out; } - if (channel->state != SMD_CHANNEL_OPENED) { - ret = -EPIPE; - goto out; - } - SET_TX_CHANNEL_FLAG(channel, fBLOCKREADINTR, 0); ret = wait_event_interruptible(channel->fblockread_event, @@ -765,6 +761,12 @@ static int __qcom_smd_send(struct qcom_smd_channel *channel, const void *data, SET_TX_CHANNEL_FLAG(channel, fBLOCKREADINTR, 1); } + /* Fail if the channel was closed */ + if (channel->state != SMD_CHANNEL_OPENED) { + ret = -EPIPE; + goto out; + } + SET_TX_CHANNEL_FLAG(channel, fTAIL, 0); qcom_smd_write_fifo(channel, hdr, sizeof(hdr)); |