Fix variable naming issues in _alpm_db_cmp

When this function got a rewrite in commit f43805d875, argument and variable
names got a bit mixed up when separating the casts from the strcmp
operation. Fix the mixup which also fixes a possible segfault when this
function is called.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/libalpm/db.c b/lib/libalpm/db.c
index d9a3931e..191c8ba0 100644
--- a/lib/libalpm/db.c
+++ b/lib/libalpm/db.c
@@ -358,8 +358,8 @@ void _alpm_db_free(pmdb_t *db)
 
 int _alpm_db_cmp(const void *d1, const void *d2)
 {
-	pmdb_t *db1 = (pmdb_t *)db1;
-	pmdb_t *db2 = (pmdb_t *)db2;
+	pmdb_t *db1 = (pmdb_t *)d1;
+	pmdb_t *db2 = (pmdb_t *)d2;
 	return(strcmp(db1->treename, db2->treename));
 }