ALSA: hda - Add missing NULL check in amp hash allocation

Added the missing NULL check from allocator in get_alloc_hash().

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 810465b..f13834b 100644 (file)
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -899,6 +899,8 @@ static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 
        /* add a new hash entry */
        info = snd_array_new(&cache->buf);
+       if (!info)
+               return NULL;
        info->key = key;
        info->val = 0;
        info->next = cache->hash[idx];