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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-08-07 13:50:14 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-08-08 20:49:33 +0200 |
| commit | 77254950bb174d637cd88d1a74e137ecf3185a65 (patch) | |
| tree | bd7714b590a9d16d35c3b95e42d7454e5254b0c3 /drivers/base/power | |
| parent | d06a8a4fe7d81e8d1fa3d753be9b14c785b4b2e7 (diff) | |
| download | linux-77254950bb174d637cd88d1a74e137ecf3185a65.tar.gz linux-77254950bb174d637cd88d1a74e137ecf3185a65.tar.bz2 linux-77254950bb174d637cd88d1a74e137ecf3185a65.zip | |
PM: Make dev_pm_get_subsys_data() always return 0 on success
Commits 1d5fcfec22 (PM / Domains: Add device domain data reference
counter) and 62d4490294 (PM / Domains: Allow device callbacks to be
added at any time) added checks for the return value of
dev_pm_get_subsys_data(), but those checks were incorrect, because
that function returned 1 on success in some cases.
Since all of the existing users of dev_pm_get_subsys_data() don't use
the positive value returned by it on success, change its definition
so that it always returns 0 when successful.
Reported-by: Heiko Stübner <heiko@sntech.de>
Reported-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/base/power')
| -rw-r--r-- | drivers/base/power/clock_ops.c | 3 | ||||
| -rw-r--r-- | drivers/base/power/common.c | 4 |
2 files changed, 2 insertions, 5 deletions
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c index 869d7ff2227f..eb78e9640c4a 100644 --- a/drivers/base/power/clock_ops.c +++ b/drivers/base/power/clock_ops.c @@ -169,8 +169,7 @@ void pm_clk_init(struct device *dev) */ int pm_clk_create(struct device *dev) { - int ret = dev_pm_get_subsys_data(dev); - return ret < 0 ? ret : 0; + return dev_pm_get_subsys_data(dev); } /** diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c index a14085cc613f..39c32529b833 100644 --- a/drivers/base/power/common.c +++ b/drivers/base/power/common.c @@ -24,7 +24,6 @@ int dev_pm_get_subsys_data(struct device *dev) { struct pm_subsys_data *psd; - int ret = 0; psd = kzalloc(sizeof(*psd), GFP_KERNEL); if (!psd) @@ -40,7 +39,6 @@ int dev_pm_get_subsys_data(struct device *dev) dev->power.subsys_data = psd; pm_clk_init(dev); psd = NULL; - ret = 1; } spin_unlock_irq(&dev->power.lock); @@ -48,7 +46,7 @@ int dev_pm_get_subsys_data(struct device *dev) /* kfree() verifies that its argument is nonzero. */ kfree(psd); - return ret; + return 0; } EXPORT_SYMBOL_GPL(dev_pm_get_subsys_data); |