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ACPI fixes for v4.9-rc2

Browse Source 
Specifics:
 
  - Update the ACPI WDAT-based watchdog driver to ping the hardware
    during system resume to prevent a reset from occurring after the
    resume is complete (Mika Westerberg).
 
  - Fix the return value of the pcc_mbox_request_channel() stub for
    CONFIG_PCC unset (Hoan Tran).
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Merge tag 'acpi-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix an issue related to system resume in the new WDAT-based
  watchdog driver and a return value of a stub function in the ACPI CPPC
  framework.

  Specifics:

   - Update the ACPI WDAT-based watchdog driver to ping the hardware
     during system resume to prevent a reset from occurring after the
     resume is complete (Mika Westerberg).

   - Fix the return value of the pcc_mbox_request_channel() stub for
     CONFIG_PCC unset (Hoan Tran)"

* tag 'acpi-4.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  watchdog: wdat_wdt: Ping the watchdog on resume
  mailbox: PCC: Fix return value of pcc_mbox_request_channel()
This commit is contained in:
Linus Torvalds 2016-10-21 15:54:45 -07:00
commit 43ef55daa7
2 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/watchdog/wdat_wdt.c
View File

@ -499,6 +499,10 @@ static int wdat_wdt_resume_noirq(struct device *dev)
ret = wdat_wdt_enable_reboot(wdat);
if (ret)
return ret;
ret = wdat_wdt_ping(&wdat->wdd);
if (ret)
return ret;
}
return wdat_wdt_start(&wdat->wdd);

2
include/acpi/pcc.h
View File

@ -21,7 +21,7 @@ extern void pcc_mbox_free_channel(struct mbox_chan *chan);
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
int subspace_id)
{
return NULL;
return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
#endif