busctl introspect: use free_and_replace()

diff --git a/src/libsystemd/sd-bus/busctl-introspect.c b/src/libsystemd/sd-bus/busctl-introspect.c
index 9e0525e..a057949 100644 (file)
--- a/src/libsystemd/sd-bus/busctl-introspect.c
+++ b/src/libsystemd/sd-bus/busctl-introspect.c
@@ -143,9 +143,7 @@ static int parse_xml_annotation(Context *context, uint64_t *flags) {
                 case STATE_NAME:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                free(field);
-                                field = name;
-                                name = NULL;
+                                free_and_replace(field, name);
 
                                 state = STATE_ANNOTATION;
                         } else {
@@ -158,9 +156,7 @@ static int parse_xml_annotation(Context *context, uint64_t *flags) {
                 case STATE_VALUE:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                free(value);
-                                value = name;
-                                name = NULL;
+                                free_and_replace(value, name);
 
                                 state = STATE_ANNOTATION;
                         } else {
@@ -351,11 +347,8 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_INTERFACE_NAME:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                if (n_depth == 0) {
-                                        free(context->interface_name);
-                                        context->interface_name = name;
-                                        name = NULL;
-                                }
+                                if (n_depth == 0)
+                                        free_and_replace(context->interface_name, name);
 
                                 state = STATE_INTERFACE;
                         } else {
@@ -410,12 +403,8 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_METHOD_NAME:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-
-                                if (n_depth == 0) {
-                                        free(context->member_name);
-                                        context->member_name = name;
-                                        name = NULL;
-                                }
+                                if (n_depth == 0)
+                                        free_and_replace(context->member_name, name);
 
                                 state = STATE_METHOD;
                         } else {
@@ -489,9 +478,7 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_METHOD_ARG_TYPE:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                free(argument_type);
-                                argument_type = name;
-                                name = NULL;
+                                free_and_replace(argument_type, name);
 
                                 state = STATE_METHOD_ARG;
                         } else {
@@ -504,9 +491,7 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_METHOD_ARG_DIRECTION:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                free(argument_direction);
-                                argument_direction = name;
-                                name = NULL;
+                                free_and_replace(argument_direction, name);
 
                                 state = STATE_METHOD_ARG;
                         } else {
@@ -561,12 +546,8 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_SIGNAL_NAME:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-
-                                if (n_depth == 0) {
-                                        free(context->member_name);
-                                        context->member_name = name;
-                                        name = NULL;
-                                }
+                                if (n_depth == 0)
+                                        free_and_replace(context->member_name, name);
 
                                 state = STATE_SIGNAL;
                         } else {
@@ -634,9 +615,7 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_SIGNAL_ARG_TYPE:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-                                free(argument_type);
-                                argument_type = name;
-                                name = NULL;
+                                free_and_replace(argument_type, name);
 
                                 state = STATE_SIGNAL_ARG;
                         } else {
@@ -708,12 +687,9 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_PROPERTY_NAME:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
+                                if (n_depth == 0)
+                                        free_and_replace(context->member_name, name);
 
-                                if (n_depth == 0) {
-                                        free(context->member_name);
-                                        context->member_name = name;
-                                        name = NULL;
-                                }
                                 state = STATE_PROPERTY;
                         } else {
                                 log_error("Unexpected token in <property>. (2)");
@@ -725,12 +701,8 @@ static int parse_xml_node(Context *context, const char *prefix, unsigned n_depth
                 case STATE_PROPERTY_TYPE:
 
                         if (t == XML_ATTRIBUTE_VALUE) {
-
-                                if (n_depth == 0) {
-                                        free(context->member_signature);
-                                        context->member_signature = name;
-                                        name = NULL;
-                                }
+                                if (n_depth == 0)
+                                        free_and_replace(context->member_signature, name);
 
                                 state = STATE_PROPERTY;
                         } else {