[PATCH v4 02/10] ALSA: hda: ext: Clean up streams if their initialization fails

[Cezary Rojewski <cezary.rojewski@intel.com>]

snd_hdac_ext_stream_init_all() does not rollback changes done when
the allocation fails. Fix that to simplify its usage.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
---
 sound/hda/core/ext/stream.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/hda/core/ext/stream.c b/sound/hda/core/ext/stream.c
index 517bd151fcc3..1f96e0484660 100644
--- a/sound/hda/core/ext/stream.c
+++ b/sound/hda/core/ext/stream.c
@@ -102,8 +102,10 @@ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
 
 	for (i = 0; i < num_stream; i++) {
 		struct hdac_ext_stream *hext_stream = kzalloc_obj(*hext_stream);
-		if (!hext_stream)
+		if (!hext_stream) {
+			snd_hdac_ext_stream_free_all(bus);
 			return -ENOMEM;
+		}
 		tag = ++stream_tag;
 		snd_hdac_ext_stream_init(bus, hext_stream, idx, dir, tag);
 		idx++;
@@ -111,7 +113,6 @@ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
 	}
 
 	return 0;
-
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_init_all);
 
-- 
2.34.1