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ASoC: tegra: Fix reference count leaks. 

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@umn.edu>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200613204422.24484-1-wu000273@umn.edu
Signed-off-by: Mark Brown <broonie@kernel.org>
zero-sugar-mainline-defconfig
Qiushi Wu 2020-06-13 15:44:19 -05:00 committed by Mark Brown
parent 668b1508cf
commit deca195383
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 6 additions and 2 deletions
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4
sound/soc/tegra/tegra30_ahub.c
View File

@ -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);

4
sound/soc/tegra/tegra30_i2s.c
View File

@ -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);