ASoC: wm0010: fix memory leak

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 <[email protected]> Acked-by: Charles Keepax <[email protected]> Signed-off-by: Mark Brown <[email protected]>
nkskjames · Jan 13, 2016 · 197401d · 197401d
1 parent 2bd2210
commit 197401d
Showing 1 changed file with 7 additions and 1 deletion.
diff --git 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);
@@ -690,13 +692,17 @@ 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;
 		}
 
 		/* Use a second send of the message to get the return status */
 		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;
 		}