Fix ziplistDeleteRange index parameter

It's valid to delete from negative offsets, so we *don't*
want unsigned arguments here.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/ziplist.c b/src/ziplist.c
index 8975e6305..7e8823f5a 100644
--- a/src/ziplist.c
+++ b/src/ziplist.c
@@ -781,7 +781,7 @@ unsigned char *ziplistDelete(unsigned char *zl, unsigned char **p) {
 }
 
 /* Delete a range of entries from the ziplist. */
-unsigned char *ziplistDeleteRange(unsigned char *zl, unsigned int index, unsigned int num) {
+unsigned char *ziplistDeleteRange(unsigned char *zl, int index, unsigned int num) {
     unsigned char *p = ziplistIndex(zl,index);
     return (p == NULL) ? zl : __ziplistDelete(zl,p,num);
 }
diff --git a/src/ziplist.h b/src/ziplist.h
index bc27006aa..ef0e27140 100644
--- a/src/ziplist.h
+++ b/src/ziplist.h
@@ -39,7 +39,7 @@ unsigned char *ziplistPrev(unsigned char *zl, unsigned char *p);
 unsigned int ziplistGet(unsigned char *p, unsigned char **sval, unsigned int *slen, long long *lval);
 unsigned char *ziplistInsert(unsigned char *zl, unsigned char *p, unsigned char *s, unsigned int slen);
 unsigned char *ziplistDelete(unsigned char *zl, unsigned char **p);
-unsigned char *ziplistDeleteRange(unsigned char *zl, unsigned int index, unsigned int num);
+unsigned char *ziplistDeleteRange(unsigned char *zl, int index, unsigned int num);
 unsigned int ziplistCompare(unsigned char *p, unsigned char *s, unsigned int slen);
 unsigned char *ziplistFind(unsigned char *p, unsigned char *vstr, unsigned int vlen, unsigned int skip);
 unsigned int ziplistLen(unsigned char *zl);