Hi there, I recently noticed that my thinkpad T60 would lose the sound after being suspended to disk (https://launchpad.net/bugs/80893), requiring a cold restart to fix it. After some git-bisect work I found this regression was a consequence of http://git.kernel.org/?p=linux/kernel/git/lenb/linux-acpi-2.6.git;a=commitdiff;h=9185cfa92507d07ac787bc73d06c42222eec7239 (patch inlined here) Is there any chance of fixing the regression this introduced without reverting it? Please let me know if you want any other info or have a patch for me to try. Cheers, Guilherme diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 0b00f56..88fc5d7 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -60,9 +60,11 @@ static void power_down(suspend_disk_method_t mode) { switch(mode) { case PM_DISK_PLATFORM: - kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); - pm_ops->enter(PM_SUSPEND_DISK); - break; + if (pm_ops && pm_ops->enter) { + kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); + pm_ops->enter(PM_SUSPEND_DISK); + break; + } case PM_DISK_SHUTDOWN: kernel_power_off(); break; diff --git a/kernel/power/main.c b/kernel/power/main.c index 500eb87..ff3a618 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -29,7 +29,7 @@ DEFINE_MUTEX(pm_mutex); struct pm_ops *pm_ops; -suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN; +suspend_disk_method_t pm_disk_mode = PM_DISK_PLATFORM; /** * pm_set_ops - Set the global power method table. - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
