diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index d5a9050..5330949 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -73,7 +73,7 @@
 LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c
 LOCAL_STATIC_LIBRARIES := liblog
 ifneq ($(HOST_OS),windows)
-LOCAL_CFLAGS += -Werror
+LOCAL_CFLAGS += -Werror -Wall -Wextra
 endif
 LOCAL_MULTILIB := both
 include $(BUILD_HOST_STATIC_LIBRARY)
@@ -83,7 +83,7 @@
 LOCAL_SRC_FILES := $(commonSources) $(commonHostSources) dlmalloc_stubs.c
 LOCAL_SHARED_LIBRARIES := liblog
 ifneq ($(HOST_OS),windows)
-LOCAL_CFLAGS += -Werror
+LOCAL_CFLAGS += -Werror -Wall -Wextra
 endif
 LOCAL_MULTILIB := both
 include $(BUILD_HOST_SHARED_LIBRARY)
@@ -122,7 +122,7 @@
 
 LOCAL_C_INCLUDES := $(libcutils_c_includes)
 LOCAL_STATIC_LIBRARIES := liblog
-LOCAL_CFLAGS += -Werror -std=gnu90
+LOCAL_CFLAGS += -Werror -Wall -Wextra -std=gnu90
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
@@ -131,7 +131,7 @@
 # liblog symbols present in libcutils.
 LOCAL_WHOLE_STATIC_LIBRARIES := libcutils liblog
 LOCAL_SHARED_LIBRARIES := liblog
-LOCAL_CFLAGS += -Werror
+LOCAL_CFLAGS += -Werror -Wall -Wextra
 LOCAL_C_INCLUDES := $(libcutils_c_includes)
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/libcutils/fs_config.c b/libcutils/fs_config.c
index cb77ee6..1316339 100644
--- a/libcutils/fs_config.c
+++ b/libcutils/fs_config.c
@@ -160,8 +160,7 @@
     const char *out = getenv("OUT");
     if (out && *out) {
         char *name = NULL;
-        asprintf(&name, "%s%s", out, dir ? conf_dir : conf_file);
-        if (name) {
+        if (asprintf(&name, "%s%s", out, dir ? conf_dir : conf_file) != -1) {
             fd = TEMP_FAILURE_RETRY(open(name, O_RDONLY | O_BINARY));
             free(name);
         }