detect pkghash allocation failure

If rehash ever failed with a full hash it would return the old hash
that is already full.  get_hash_position would then loop forever
because it would never find an empty bucket.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/libalpm/pkghash.h b/lib/libalpm/pkghash.h
index dd163346..a5c02c19 100644
--- a/lib/libalpm/pkghash.h
+++ b/lib/libalpm/pkghash.h
@@ -49,8 +49,8 @@ typedef struct __alpm_pkghash_t alpm_pkghash_t;
 
 alpm_pkghash_t *_alpm_pkghash_create(unsigned int size);
 
-alpm_pkghash_t *_alpm_pkghash_add(alpm_pkghash_t *hash, alpm_pkg_t *pkg);
-alpm_pkghash_t *_alpm_pkghash_add_sorted(alpm_pkghash_t *hash, alpm_pkg_t *pkg);
+alpm_pkghash_t *_alpm_pkghash_add(alpm_pkghash_t **hash, alpm_pkg_t *pkg);
+alpm_pkghash_t *_alpm_pkghash_add_sorted(alpm_pkghash_t **hash, alpm_pkg_t *pkg);
 alpm_pkghash_t *_alpm_pkghash_remove(alpm_pkghash_t *hash, alpm_pkg_t *pkg, alpm_pkg_t **data);
 
 void _alpm_pkghash_free(alpm_pkghash_t *hash);