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always return the rx buffer even endpoint can't be found

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any wrong input shouldn't make the buffer lose

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2019-01-02 15:19:01 +08:00
committed by Wendy Liang
parent 600acf254d
commit 52c8f7511d
1 changed files with 12 additions and 13 deletions
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25
lib/rpmsg/rpmsg_virtio.c
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@@ -408,22 +408,21 @@ static void rpmsg_virtio_rx_callback(struct virtqueue *vq)
ept = rpmsg_get_ept_from_addr(rdev, rp_hdr->dst);
metal_mutex_release(&rdev->lock);
if (!ept)
/* Fatal error no endpoint for the given dst addr. */
return;
if (ept) {
if (ept->dest_addr == RPMSG_ADDR_ANY) {
/*
* First message received from the remote side,
* update channel destination address
*/
ept->dest_addr = rp_hdr->src;
}
status = ept->cb(ept, RPMSG_LOCATE_DATA(rp_hdr),
rp_hdr->len, rp_hdr->src, ept->priv);
if (ept->dest_addr == RPMSG_ADDR_ANY) {
/*
* First message received from the remote side,
* update channel destination address
*/
ept->dest_addr = rp_hdr->src;
RPMSG_ASSERT(status == RPMSG_SUCCESS,
"unexpected callback status\n");
}
status = ept->cb(ept, (void *)RPMSG_LOCATE_DATA(rp_hdr),
rp_hdr->len, rp_hdr->src, ept->priv);
RPMSG_ASSERT(status == RPMSG_SUCCESS,
"unexpected callback status\n");
metal_mutex_acquire(&rdev->lock);
/* Return used buffers. */