| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 26/63] ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt() | Date | Sun, 29 Sep 2019 15:53:59 +0200 |
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From: Takashi Iwai <tiwai@suse.de>
commit 2757970f6d0d0a112247600b23d38c0c728ceeb3 upstream.
The node obtained from of_find_node_by_path() has to be unreferenced after the use, but we forgot it for the root node.
Fixes: f0fba2ad1b6b ("ASoC: multi-component - ASoC Multi-Component Support") Cc: Timur Tabi <timur@kernel.org> Cc: Nicolin Chen <nicoleotsuka@gmail.com> Cc: Xiubo Li <Xiubo.Lee@gmail.com> Cc: Fabio Estevam <festevam@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Acked-by: Nicolin Chen <nicoleotsuka@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- sound/soc/fsl/fsl_ssi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -1439,8 +1439,10 @@ static int fsl_ssi_probe_from_dt(struct * different name to register the device. */ if (!ssi->card_name[0] && of_get_property(np, "codec-handle", NULL)) { - sprop = of_get_property(of_find_node_by_path("/"), - "compatible", NULL); + struct device_node *root = of_find_node_by_path("/"); + + sprop = of_get_property(root, "compatible", NULL); + of_node_put(root); /* Strip "fsl," in the compatible name if applicable */ p = strrchr(sprop, ','); if (p)
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