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Subject[PATCH] ASoC: wm0010: fix memory leak
Date
We were aborting if the kzalloc of img_swap fails but without freeing the
already allocated out. Similarly we were aborting if spi_sync fails
without releasing out and img_swap.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
sound/soc/codecs/wm0010.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index f2c6ad4..8434d45 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -672,8 +672,10 @@ static int wm0010_boot(struct snd_soc_codec *codec)
}

img_swap = kzalloc(len, GFP_KERNEL | GFP_DMA);
- if (!img_swap)
+ if (!img_swap) {
+ kfree(out);
goto abort;
+ }

/* We need to re-order for 0010 */
byte_swap_64((u64 *)&pll_rec, img_swap, len);
@@ -690,6 +692,8 @@ static int wm0010_boot(struct snd_soc_codec *codec)
ret = spi_sync(spi, &m);
if (ret != 0) {
dev_err(codec->dev, "First PLL write failed: %d\n", ret);
+ kfree(img_swap);
+ kfree(out);
goto abort;
}

@@ -697,6 +701,8 @@ static int wm0010_boot(struct snd_soc_codec *codec)
ret = spi_sync(spi, &m);
if (ret != 0) {
dev_err(codec->dev, "Second PLL write failed: %d\n", ret);
+ kfree(img_swap);
+ kfree(out);
goto abort;
}

--
1.9.1


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