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ALSA: xen-front: freeing an error pointer

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

Fixes: fd3b36045c ("ALSA: xen-front: Read sound driver configuration from Xen store")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Dan Carpenter 2018-05-30 13:36:55 +03:00 committed by Takashi Iwai
parent 986376b68d
commit e46dcbb17d
1 changed files with 2 additions and 0 deletions
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2
sound/xen/xen_snd_front_cfg.c
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@ -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;
}