[alsa-devel] [PATCH] ALSA: xen-front: freeing an error pointer

[Dan Carpenter]

kfree() doesn't accept error pointers so I've set "str" to NULL on these
paths.

Fixes: fd3b36045c2c ("ALSA: xen-front: Read sound driver configuration from Xen store")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/sound/xen/xen_snd_front_cfg.c b/sound/xen/xen_snd_front_cfg.c
index 38c7e1eefbb9..68dcd7d1f09e 100644
--- a/sound/xen/xen_snd_front_cfg.c
+++ b/sound/xen/xen_snd_front_cfg.c
@@ -306,6 +306,7 @@ static int cfg_get_stream_type(const char *path, int index,
 	str = xenbus_read(XBT_NIL, stream_path, XENSND_FIELD_TYPE, NULL);
 	if (IS_ERR(str)) {
 		ret = PTR_ERR(str);
+		str = NULL;
 		goto fail;
 	}
 
@@ -347,6 +348,7 @@ static int cfg_stream(struct xen_snd_front_info *front_info,
 	str = xenbus_read(XBT_NIL, stream_path, XENSND_FIELD_TYPE, NULL);
 	if (IS_ERR(str)) {
 		ret = PTR_ERR(str);
+		str = NULL;
 		goto fail;
 	}