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[Qemu-devel] [PATCH v1 1/1] etraxfs_dma: Dont forward zero-length payloa
From: |
Edgar E. Iglesias |
Subject: |
[Qemu-devel] [PATCH v1 1/1] etraxfs_dma: Dont forward zero-length payload to clients |
Date: |
Tue, 16 Feb 2016 12:53:32 +0100 |
From: "Edgar E. Iglesias" <address@hidden>
Signed-off-by: Edgar E. Iglesias <address@hidden>
---
hw/dma/etraxfs_dma.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/hw/dma/etraxfs_dma.c b/hw/dma/etraxfs_dma.c
index 9cbb165..d5650eb 100644
--- a/hw/dma/etraxfs_dma.c
+++ b/hw/dma/etraxfs_dma.c
@@ -440,13 +440,16 @@ static int channel_out_run(struct fs_dma_ctrl *ctrl, int
c)
D(printf("channel %d pushes %x %u bytes eop=%u\n", c,
saved_data_buf, len, out_eop));
- if (ctrl->channels[c].client->client.push)
- ctrl->channels[c].client->client.push(
- ctrl->channels[c].client->client.opaque,
- buf, len, out_eop);
- else
+ if (ctrl->channels[c].client->client.push) {
+ if (len > 0) {
+ ctrl->channels[c].client->client.push(
+ ctrl->channels[c].client->client.opaque,
+ buf, len, out_eop);
+ }
+ } else {
printf("WARNING: DMA ch%d dataloss,"
" no attached client.\n", c);
+ }
saved_data_buf += len;
--
1.9.1
- [Qemu-devel] [PATCH v1 1/1] etraxfs_dma: Dont forward zero-length payload to clients,
Edgar E. Iglesias <=