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Ensure errno is valid when returning from lxcContainerWaitForContinue

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Only some of the return paths of lxcContainerWaitForContinue will
have set errno. In other paths we need to set it manually to avoid
the caller getting a random stale errno value

* src/lxc/lxc_container.c: Set errno in lxcContainerWaitForContinue
This commit is contained in:
Daniel P. Berrange 2011-11-01 12:28:26 +00:00
parent f33b5792f7
commit 065ecf5162
1 changed files with 7 additions and 2 deletions
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9
src/lxc/lxc_container.c
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@ -224,8 +224,13 @@ int lxcContainerWaitForContinue(int control)
int readLen;
readLen = saferead(control, &msg, sizeof(msg));
if (readLen != sizeof(msg) ||
msg != LXC_CONTINUE_MSG) {
if (readLen != sizeof(msg)) {
if (readLen >= 0)
errno = EIO;
return -1;
}
if (msg != LXC_CONTINUE_MSG) {
errno = EINVAL;
return -1;
}