PM: sleep: Drop superfluous might_sleep() calls

Drop superfluous might_sleep() calls from dpm_resume(), dpm_complete(),
and dpm_prepare(). These functions already invoke primitives that
implicitly check for sleep in atomic context:

 - dpm_resume() and dpm_complete() invoke mutex_lock(), which internally
   triggers might_sleep().

 - dpm_prepare() calls wait_for_device_probe(), which internally uses
   flush_work(), and thus might_sleep().

These annotations are unnecessary and can be dropped to reduce clutter.

Signed-off-by: Zhongqiu Han <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: ZhongqiuHan-Qcom

drivers/base/power/main.c

@@ -1095,7 +1095,6 @@ void dpm_resume(pm_message_t state)
 	ktime_t starttime = ktime_get();
 
 	trace_suspend_resume(TPS("dpm_resume"), state.event, true);
-	might_sleep();
 
 	pm_transition = state;
 	async_error = 0;
@@ -1198,7 +1197,6 @@ void dpm_complete(pm_message_t state)
 	struct list_head list;
 
 	trace_suspend_resume(TPS("dpm_complete"), state.event, true);
-	might_sleep();
 
 	INIT_LIST_HEAD(&list);
 	mutex_lock(&dpm_list_mtx);
@@ -2110,7 +2108,6 @@ int dpm_prepare(pm_message_t state)
 	int error = 0;
 
 	trace_suspend_resume(TPS("dpm_prepare"), state.event, true);
-	might_sleep();
 
 	/*
 	 * Give a chance for the known devices to complete their probes, before