Merge pull request #1269 from gargrahul/fix_ptr_attr_unkonwn_to_invalid

hipPointerGetAttributes- Change hipErrorUnknown to hipErrorInvalidValue

src/hip_memory.cpp

@@ -198,7 +198,7 @@ hipError_t hipPointerGetAttributes(hipPointerAttribute_t* attributes, const void
             attributes->isManaged = 0;
             attributes->allocationFlags = 0;
 
-            e = hipErrorUnknown;  // TODO - should be hipErrorInvalidValue ?
+            e = hipErrorInvalidValue;
         }
     }
     return ihipLogStatus(e);