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authorTakashi Iwai <tiwai@suse.de>2019-02-19 16:46:47 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-10-05 12:30:08 +0200
commit0b73caee6d650ddcf3dc219ad9ca82f3bddfcd74 (patch)
tree3126f04ae160e24eedf7de462ab82206f74ec27f /sound/soc/fsl
parentb0ff6664804ad6013b726252837ed38146b8a7e1 (diff)
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ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt()
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>
Diffstat (limited to 'sound/soc/fsl')
-rw-r--r--sound/soc/fsl/fsl_ssi.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 1c03490e1182..7cd2a5aed15a 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1431,6 +1431,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
struct fsl_ssi_private *ssi_private;
int ret = 0;
struct device_node *np = pdev->dev.of_node;
+ struct device_node *root;
const struct of_device_id *of_id;
const char *p, *sprop;
const uint32_t *iprop;
@@ -1620,7 +1621,9 @@ static int fsl_ssi_probe(struct platform_device *pdev)
* device tree. We also pass the address of the CPU DAI driver
* structure.
*/
- sprop = of_get_property(of_find_node_by_path("/"), "compatible", NULL);
+ root = of_find_node_by_path("/");
+ sprop = of_get_property(root, "compatible", NULL);
+ of_node_put(root);
/* Sometimes the compatible name has a "fsl," prefix, so we strip it. */
p = strrchr(sprop, ',');
if (p)