ALSA: PCM: Fix possible memory leaks in the error path

When the first page allocation failed for sgbuf, it leaks the records
that have been formerly allocated.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/core/sgbuf.c b/sound/core/sgbuf.c
index 4e7ec2b49873..d0f00356fc11 100644
--- a/sound/core/sgbuf.c
+++ b/sound/core/sgbuf.c
@@ -101,7 +101,7 @@ void *snd_malloc_sgbuf_pages(struct device *device,
                 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, device,
                                                  chunk, &tmpb) < 0) {
                         if (!sgbuf->pages)
-                                return NULL;
+                                goto _failed;
                         if (!res_size)
                                 goto _failed;
                         size = sgbuf->pages * PAGE_SIZE;