memleak fix: ensure backup fname isn't lost if unused

The _alpm_backup_split function always alloced memory for the fname, and we
let it disappear in a specific case (upgrade026.py). Fix the issue.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/libalpm/backup.c b/lib/libalpm/backup.c
index bedbe8c1..f89df55e 100644
--- a/lib/libalpm/backup.c
+++ b/lib/libalpm/backup.c
@@ -42,6 +42,9 @@ int _alpm_backup_split(const char *string, char **file, char **hash)
 	if(ptr == NULL) {
 		if(file) {
 			*file = str;
+		} else {
+			/* don't need our dup as the fname wasn't requested, so free it */
+			FREE(str);
 		}
 		return(0);
 	}