Re: [PATCH] power: Fix typo in status comparison causing warning

From: Rafael J. Wysocki
Date: Fri Oct 29 2010 - 03:50:28 EST


On Friday, October 29, 2010, Kevin Winchester wrote:
> GCC version 4.5.1 gives the following warning:
>
> drivers/base/power/runtime.c: In function ârpm_check_suspend_allowedâ:
> drivers/base/power/runtime.c:146:25: warning: comparison between âenum dpm_stateâ and âenum rpm_statusâ
>
> which seems to be a typo in that dev->power.runtime_status
> should be compared instead of dev->power.status.
>
> Signed-off-by: Kevin Winchester <kjwinchester@xxxxxxxxx>
> ---
> drivers/base/power/runtime.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
> index 126ca49..02c652b 100644
> --- a/drivers/base/power/runtime.c
> +++ b/drivers/base/power/runtime.c
> @@ -143,7 +143,7 @@ static int rpm_check_suspend_allowed(struct device *dev)
>
> /* Pending resume requests take precedence over suspends. */
> else if ((dev->power.deferred_resume
> - && dev->power.status == RPM_SUSPENDING)
> + && dev->power.runtime_status == RPM_SUSPENDING)
> || (dev->power.request_pending
> && dev->power.request == RPM_REQ_RESUME))
> retval = -EAGAIN;

Ouch, this actually is a serious bug.

Thanks a lot for the fix, will push to Linus shortly.

Rafael

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