[LLVMbugs] [Bug 19493] New: False positive: Function call argument is an uninitialized value

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19493

            Bug ID: 19493
           Summary: False positive: Function call argument is an
                    uninitialized value
           Product: clang
           Version: 3.4
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Static Analyzer
          Assignee: kremenek at apple.com
          Reporter: shachar at shemesh.biz
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

The file is a test file part of fakeroot-ng:
http://sourceforge.net/p/fakerootng/source/ci/multithreaded_debugger/tree/tests/getsiginfo.c#l102

../../tests/getsiginfo.c:102:13: warning: Function call argument is an
uninitialized value
        sig=print_wait_res( pid, status );
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.

The line immediately before is:
pid=wait(&status);

"wait", in this case, is the syscall:
http://linux.die.net/man/2/wait

The warning fails to explain which argument it thinks is uninitialized, but I
think it's fairly clear both are.

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