[clang] [clang][analyzer] Add allocation failure modeling to DynamicMemoryModeling (PR #205371)

[Donát Nagy via cfe-commits]

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@@ -530,15 +539,15 @@ class MallocChecker
   };
 
   CallDescriptionMap<CheckFn> AllocatingMemFnMap{
-      {{CDM::CLibrary, {"malloc"}, 1}, &MallocChecker::checkBasicAlloc},
+      {{CDM::CLibrary, {"malloc"}, 1}, &MallocChecker::checkBasicAllocMayFail},
       {{CDM::CLibrary, {"malloc"}, 3}, &MallocChecker::checkKernelMalloc},
       {{CDM::CLibrary, {"calloc"}, 2}, &MallocChecker::checkCalloc},
       {{CDM::CLibrary, {"valloc"}, 1}, &MallocChecker::checkBasicAlloc},
       {{CDM::CLibrary, {"strndup"}, 2}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"strdup"}, 1}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"_strdup"}, 1}, &MallocChecker::checkStrdup},
       {{CDM::CLibrary, {"kmalloc"}, 2}, &MallocChecker::checkKernelMalloc},
-      {{CDM::CLibrary, {"if_nameindex"}, 1}, &MallocChecker::checkIfNameIndex},
+      {{CDM::CLibrary, {"if_nameindex"}, 0}, &MallocChecker::checkIfNameIndex},
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NagyDonat wrote:

I see that this change is very small, but it is logically independent, so I think it belongs to a separate patch.

https://github.com/llvm/llvm-project/pull/205371