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| author | Nicholas Mc Guire <hofrat@osadl.org> | 2018-06-29 20:07:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-04 03:00:50 +0300 |
| commit | 85d3dbd8e7f2af3083f8f68db468c9fdebe9d8d2 (patch) | |
| tree | bee4b382db273e777183a2246b61a90e0aea65cf /sound/aoa | |
| parent | 3e3f075f72bd2dfcd5211bd1ff3919bc118ad4cd (diff) | |
| download | linux-85d3dbd8e7f2af3083f8f68db468c9fdebe9d8d2.tar.xz | |
ALSA: snd-aoa: add of_node_put() in error path
[ Upstream commit 222bce5eb88d1af656419db04bcd84b2419fb900 ]
Both calls to of_find_node_by_name() and of_get_next_child() return a
node pointer with refcount incremented thus it must be explicidly
decremented here after the last usage. As we are assured to have a
refcounted np either from the initial
of_find_node_by_name(NULL, name); or from the of_get_next_child(gpio, np)
in the while loop if we reached the error code path below, an
x of_node_put(np) is needed.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit f3d9478b2ce4 ("[ALSA] snd-aoa: add snd-aoa")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/aoa')
| -rw-r--r-- | sound/aoa/core/gpio-feature.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/aoa/core/gpio-feature.c b/sound/aoa/core/gpio-feature.c index 71960089e207..65557421fe0b 100644 --- a/sound/aoa/core/gpio-feature.c +++ b/sound/aoa/core/gpio-feature.c @@ -88,8 +88,10 @@ static struct device_node *get_gpio(char *name, } reg = of_get_property(np, "reg", NULL); - if (!reg) + if (!reg) { + of_node_put(np); return NULL; + } *gpioptr = *reg; |