http://llvm.org/bugs/show_bug.cgi?id=10621
Summary: Static analyzer false positive with
IORegistryEntrySearchCFProperty()
Product: clang
Version: trunk
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
The static analyzer reports "Incorrect decrement of the reference count of an
object that is not owned at this point by the caller" for the snippet below:
------
#import <CoreFoundation/CoreFoundation.h>
#import <IOKit/IOKitLib.h>
int main (void)
{
CFArrayRef arrayRef = IORegistryEntrySearchCFProperty(0,
kIOServicePlane,
CFSTR("IOConsoleUsers"),
NULL,
kIORegistryIterateRecursively);
if (arrayRef != NULL)
{
CFRelease(arrayRef);
}
return 0;
}
------
But the docs for IORegistryEntrySearchCFProperty() say: "Return Value - A CF
container is created and returned the caller on success. The caller should
release with CFRelease".
The API doesn't have Create or Copy in it's name, which I guess is also a bug,
and perhaps the root cause of this bug.
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