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Date: Mon, 24 Oct 2022 13:30:10 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Liang He <windhl@....com>,
Mark Brown <broonie@...nel.org>,
Sasha Levin <sashal@...nel.org>,
Kelin Wang <wangkelin2023@....com>
Subject: [PATCH 5.4 100/255] ASoC: eureka-tlv320: Hold reference returned from of_find_xxx API
From: Liang He <windhl@....com>
[ Upstream commit bfb735a3ceff0bab6473bac275da96f9b2a06dec ]
In eukrea_tlv320_probe(), we need to hold the reference returned
from of_find_compatible_node() which has increased the refcount
and then call of_node_put() with it when done.
Fixes: 66f232908de2 ("ASoC: eukrea-tlv320: Add DT support.")
Co-authored-by: Kelin Wang <wangkelin2023@....com>
Signed-off-by: Liang He <windhl@....com>
Link: https://lore.kernel.org/r/20220914134354.3995587-1-windhl@126.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
sound/soc/fsl/eukrea-tlv320.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
index 6f3b768489f6..bf3d3f0aa858 100644
--- a/sound/soc/fsl/eukrea-tlv320.c
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -86,7 +86,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
int ret;
int int_port = 0, ext_port;
struct device_node *np = pdev->dev.of_node;
- struct device_node *ssi_np = NULL, *codec_np = NULL;
+ struct device_node *ssi_np = NULL, *codec_np = NULL, *tmp_np = NULL;
eukrea_tlv320.dev = &pdev->dev;
if (np) {
@@ -143,7 +143,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
}
if (machine_is_eukrea_cpuimx27() ||
- of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
+ (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux"))) {
imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_TFSDIR |
@@ -158,10 +158,11 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
IMX_AUDMUX_V1_PCR_SYN |
IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
);
+ of_node_put(tmp_np);
} else if (machine_is_eukrea_cpuimx25sd() ||
machine_is_eukrea_cpuimx35sd() ||
machine_is_eukrea_cpuimx51sd() ||
- of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
+ (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux"))) {
if (!np)
ext_port = machine_is_eukrea_cpuimx25sd() ?
4 : 3;
@@ -178,6 +179,7 @@ static int eukrea_tlv320_probe(struct platform_device *pdev)
IMX_AUDMUX_V2_PTCR_SYN,
IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
);
+ of_node_put(tmp_np);
} else {
if (np) {
/* The eukrea,asoc-tlv320 driver was explicitly
--
2.35.1
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