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authorWen Yang <wen.yang99@zte.com.cn>2019-02-26 16:17:50 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-31 06:46:28 -0700
commit71efe4c70afc8b3f72964d334993b3783223bc76 (patch)
tree9b71df252f3ca5a71d8540197182954630f3ab41 /sound
parentb6b7a78cf997e8e3c60a6dfbdcc7fac0ff54e887 (diff)
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ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put
[ Upstream commit c705247136a523488eac806bd357c3e5d79a7acd ] The call to of_parse_phandle returns a node pointer with refcount incremented thus it must be explicitly decremented after the last usage. Detected by coccinelle with the following warnings: ./sound/soc/fsl/fsl_utils.c:74:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 38, but without a corresponding object release within this function. Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> 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> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/fsl/fsl_utils.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
index 7f0fa4b52223..cca33ab7020a 100644
--- a/sound/soc/fsl/fsl_utils.c
+++ b/sound/soc/fsl/fsl_utils.c
@@ -71,6 +71,7 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np,
iprop = of_get_property(dma_np, "cell-index", NULL);
if (!iprop) {
of_node_put(dma_np);
+ of_node_put(dma_channel_np);
return -EINVAL;
}
*dma_id = be32_to_cpup(iprop);