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| author | Vincent Palatin <vpalatin@chromium.org> | 2015-05-27 09:32:38 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-05-27 21:30:25 +0000 |
| commit | 245ee9f8d97e9eea8b99ab3c56ac8249cc256fec (patch) | |
| tree | 1e3105cc836af7ca835ba984b81501b032a982f1 | |
| parent | a2075a54307249255c055067a33fdfbaa3b0f66c (diff) | |
| download | chrome-ec-245ee9f8d97e9eea8b99ab3c56ac8249cc256fec.tar.gz | |
pd: never answer malformed VDM
When we are receiving a VDM which seems malformed, don't try to send an
answer, else we can ping-pong broken messages with the other side.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=plug Ryu P6 to plankton, no longer see endless "ERR:CMDT:1" error
messages.
Change-Id: If5b581c5c68996c60e37ac6d96638fd5df24356f
Reviewed-on: https://chromium-review.googlesource.com/273525
Reviewed-by: Todd Broch <tbroch@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
| -rw-r--r-- | common/usb_pd_policy.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/common/usb_pd_policy.c b/common/usb_pd_policy.c index 36ecba8fc6..19c69a7369 100644 --- a/common/usb_pd_policy.c +++ b/common/usb_pd_policy.c @@ -726,6 +726,8 @@ int pd_svdm(int port, int cnt, uint32_t *payload, uint32_t **rpayload) #endif /* CONFIG_USB_PD_ALT_MODE_DFP */ } else { CPRINTF("ERR:CMDT:%d\n", cmd); + /* do not answer */ + rsize = 0; } return rsize; } |