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wireless: gs2200m: Fix recvfrom_reques() in gs2200m_main.c

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Summary:
- During Wi-Fi stress test, I noticed ASSERT happens in gs2200m_main.c
- Actually, req->max_buflen was 0 but the case was not handled correctly
- This commit fixes this issue

Impact:
- Affects read/recvfrom with len=0 cases

Testing:
- Tested with spresense:wifi_smp
- Run nxplayer for audio streaming
- Run ps/free/ifconfig commands via telnet
- Run smp command via telnet

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2020-10-09 10:33:54 +09:00 committed by Alin Jerpelea
parent f65b16bb2e
commit f4b0f9e290
1 changed files with 9 additions and 6 deletions
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15
wireless/gs2200m/gs2200m_main.c
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@ -847,16 +847,19 @@ static int recvfrom_request(int fd, FAR struct gs2200m_s *priv,
goto prepare;
}
rmsg.buf = calloc(1, req->max_buflen);
ASSERT(rmsg.buf);
rmsg.cid = usock->cid;
rmsg.reqlen = req->max_buflen;
rmsg.is_tcp = (usock->type == SOCK_STREAM) ? true : false;
rmsg.flags = req->flags;
ret = ioctl(priv->gsfd, GS2200M_IOC_RECV,
(unsigned long)&rmsg);
if (0 < req->max_buflen)
{
rmsg.buf = calloc(1, req->max_buflen);
ASSERT(rmsg.buf);
ret = ioctl(priv->gsfd, GS2200M_IOC_RECV,
(unsigned long)&rmsg);
}
if (0 == ret)
{
@ -891,7 +894,7 @@ prepare:
resp.valuelen = MIN(resp.valuelen_nontrunc,
req->max_addrlen);
if (0 == rmsg.len)
if ((0 == rmsg.len) && (0 != rmsg.reqlen))
{
usock_send_event(fd, priv, usock,
USRSOCK_EVENT_REMOTE_CLOSED