qemu: silence clang false positives

Clang 2.8 wasn't quite able to follow that persistentDef was
assigned earlier if (flags & VIR_DOMAIN_MEM_CONFIG) is true.
Silence this false positive, to make clang analysis easier to use.

* src/qemu/qemu_driver.c (qemudDomainSetMemoryFlags): Add an
annotation to silence clang's claim of a NULL dereference.
This commit is contained in:
Eric Blake 2011-05-03 13:17:04 -06:00
parent 44699b3283
commit d8f7528157

View File

@ -1640,6 +1640,8 @@ static int qemudDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
/* Help clang 2.8 decipher the logic flow. */
sa_assert(persistentDef);
persistentDef->mem.max_balloon = newmem;
if (persistentDef->mem.cur_balloon > newmem)
persistentDef->mem.cur_balloon = newmem;
@ -1675,6 +1677,7 @@ static int qemudDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
sa_assert(persistentDef);
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(driver->configDir, persistentDef);
goto endjob;