(free_*) fix segfaulting when calling usb_probe() more than once

2 files changed, 9 insertions, 0 deletions

diff --git a/NEWS b/NEWS
index 4ce7b4e..af4c99f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,5 @@
 - fix double free
+- fix segfaulting when calling usb_probe() more than once
 
 Version 0.11.4 - 5 January 2012, Thierry Vignaud
 
diff --git a/names.c b/names.c
index 480f579..25763d5 100644
--- a/names.c
+++ b/names.c
@@ -496,6 +496,7 @@ static void free_vendor(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = vendors[i];
+		vendors[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -511,6 +512,7 @@ static void free_product(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = products[i];
+		products[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -526,6 +528,7 @@ static void free_class(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = classes[i];
+		classes[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -541,6 +544,7 @@ static void free_subclass(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = subclasses[i];
+		subclasses[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -556,6 +560,7 @@ static void free_protocol(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = protocols[i];
+		protocols[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -571,6 +576,7 @@ static void free_audioterminal(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = audioterminals[i];
+		audioterminals[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -587,6 +593,7 @@ static void free_videoterminal(void)
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = videoterminals[i];
+		videoterminals[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;
@@ -602,6 +609,7 @@ static void _free_genericstrtable(struct genericstrtable *t[HASHSZ])
 
 	for (i = 0; i < HASHSZ; i++) {
 		cur = t[i];
+		t[i] = NULL;
 		while (cur) {
 			tmp = cur;
 			cur = cur->next;