This Linux kernel change "ALSA: ppc: Fix of-node refcount unbalance" is included in the Linux 5.1 release. This change is authored by Takashi Iwai <tiwai [at] suse.de> on Mon Feb 18 15:05:24 2019 +0100. The commit for this change in Linux stable tree is 5e2c946 (patch).
ALSA: ppc: Fix of-node refcount unbalance We forgot to unreference the node when aborting from the loop of for_each_child_of_node() in snd_pmac_tumbler_init(). This leads to unbalanced node refcount. Fix it by adding the missing of_node_put() call. Signed-off-by: Takashi Iwai <[email protected]>
There is one line of Linux source code added/deleted in this change. Code changes to Linux kernel are as follows.
sound/ppc/tumbler.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c index 6d7ffff..78e5798 100644 --- a/sound/ppc/tumbler.c +++ b/sound/ppc/tumbler.c @@ -1371,6 +1371,7 @@ int snd_pmac_tumbler_init(struct snd_pmac *chip) mix->anded_reset = 1; if (of_get_property(np, "layout-id", NULL)) mix->reset_on_sleep = 0; + of_node_put(np); break; } }