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Date: Fri, 21 Aug 2020 12:14:53 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Qiushi Wu <wu000273@....edu>, Jon Hunter <jonathanh@...dia.com>, Mark Brown <broonie@...nel.org>, Sasha Levin <sashal@...nel.org>, alsa-devel@...a-project.org, linux-tegra@...r.kernel.org Subject: [PATCH AUTOSEL 5.7 09/61] ASoC: tegra: Fix reference count leaks. From: Qiushi Wu <wu000273@....edu> [ Upstream commit deca195383a6085be62cb453079e03e04d618d6e ] Calling pm_runtime_get_sync increments the counter even in case of failure, causing incorrect ref count if pm_runtime_put is not called in error handling paths. Call pm_runtime_put if pm_runtime_get_sync fails. Signed-off-by: Qiushi Wu <wu000273@....edu> Reviewed-by: Jon Hunter <jonathanh@...dia.com> Link: https://lore.kernel.org/r/20200613204422.24484-1-wu000273@umn.edu Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- sound/soc/tegra/tegra30_ahub.c | 4 +++- sound/soc/tegra/tegra30_i2s.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index 635eacbd28d47..156e3b9d613c6 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -643,8 +643,10 @@ static int tegra30_ahub_resume(struct device *dev) int ret; ret = pm_runtime_get_sync(dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put(dev); return ret; + } ret = regcache_sync(ahub->regmap_ahub); ret |= regcache_sync(ahub->regmap_apbif); pm_runtime_put(dev); diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index d59882ec48f16..db5a8587bfa4c 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -567,8 +567,10 @@ static int tegra30_i2s_resume(struct device *dev) int ret; ret = pm_runtime_get_sync(dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put(dev); return ret; + } ret = regcache_sync(i2s->regmap); pm_runtime_put(dev); -- 2.25.1
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