ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt()

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>

1 files changed, 4 insertions, 2 deletions

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 0a648229e643..09b2967befd9 100644
--- 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 fsl_ssi *ssi)
          * 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)