Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull ACPI & Power Management patches from Len Brown:
 "Two fixes for cpuidle merge-window changes, plus a URL fix in
  MAINTAINERS"

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  MAINTAINERS: Update git url for ACPI
  cpuidle: Fix panic in CPU off-lining with no idle driver
  ACPI processor: Use safe_halt() rather than halt() in acpi_idle_play_dead()

diff --git a/MAINTAINERS b/MAINTAINERS
index 0a2e44c..2dcfca8 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -228,7 +228,7 @@ M:  Len Brown <lenb@kernel.org>
 L:     linux-acpi@vger.kernel.org
 W:     http://www.lesswatts.org/projects/acpi/
 Q:     http://patchwork.kernel.org/project/linux-acpi/list/
-T:     git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
+T:     git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
 S:     Supported
 F:     drivers/acpi/
 F:     drivers/pnp/pnpacpi/

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index b3447f6..f3decb3 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -786,7 +786,7 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
        while (1) {
 
                if (cx->entry_method == ACPI_CSTATE_HALT)
-                       halt();
+                       safe_halt();
                else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) {
                        inb(cx->address);
                        /* See comment in acpi_idle_do_entry() */

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 87411ce..2f0083a 100644 (file)
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -74,7 +74,7 @@ static cpuidle_enter_t cpuidle_enter_ops;
 /**
  * cpuidle_play_dead - cpu off-lining
  *
- * Only returns in case of an error
+ * Returns in case of an error or no driver
  */
 int cpuidle_play_dead(void)
 {
@@ -83,6 +83,9 @@ int cpuidle_play_dead(void)
        int i, dead_state = -1;
        int power_usage = -1;
 
+       if (!drv)
+               return -ENODEV;
+
        /* Find lowest-power state that supports long-term idle */
        for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) {
                struct cpuidle_state *s = &drv->states[i];