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alistair23-linux
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Merge branches 'pm-cpufreq' and 'pm-sleep' 

* pm-cpufreq:
  cpufreq: ti-cpufreq: Only register platform_device when supported

* pm-sleep:
  exec: make de_thread() freezable
hifive-unleashed-5.1
Rafael J. Wysocki 2018-11-23 10:32:49 +01:00
parent bec00cb5e9 d98ccfc394 c22397888f
commit 1d50088ca3
2 changed files with 24 additions and 7 deletions
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26
drivers/cpufreq/ti-cpufreq.c
View File

@ -201,19 +201,28 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
{},
};
static const struct of_device_id *ti_cpufreq_match_node(void)
{
struct device_node *np;
const struct of_device_id *match;
np = of_find_node_by_path("/");
match = of_match_node(ti_cpufreq_of_match, np);
of_node_put(np);
return match;
}
static int ti_cpufreq_probe(struct platform_device *pdev)
{
u32 version[VERSION_COUNT];
struct device_node *np;
const struct of_device_id *match;
struct opp_table *ti_opp_table;
struct ti_cpufreq_data *opp_data;
const char * const reg_names[] = {"vdd", "vbb"};
int ret;
np = of_find_node_by_path("/");
match = of_match_node(ti_cpufreq_of_match, np);
of_node_put(np);
match = dev_get_platdata(&pdev->dev);
if (!match)
return -ENODEV;
@ -290,7 +299,14 @@ fail_put_node:
static int ti_cpufreq_init(void)
{
platform_device_register_simple("ti-cpufreq", -1, NULL, 0);
const struct of_device_id *match;
/* Check to ensure we are on a compatible platform */
match = ti_cpufreq_match_node();
if (match)
platform_device_register_data(NULL, "ti-cpufreq", -1, match,
sizeof(*match));
return 0;
}
module_init(ti_cpufreq_init);

5
fs/exec.c
View File

@ -62,6 +62,7 @@
#include <linux/oom.h>
#include <linux/compat.h>
#include <linux/vmalloc.h>
#include <linux/freezer.h>
#include <linux/uaccess.h>
#include <asm/mmu_context.h>
@ -1083,7 +1084,7 @@ static int de_thread(struct task_struct *tsk)
while (sig->notify_count) {
__set_current_state(TASK_KILLABLE);
spin_unlock_irq(lock);
schedule();
freezable_schedule();
if (unlikely(__fatal_signal_pending(tsk)))
goto killed;
spin_lock_irq(lock);
@ -1111,7 +1112,7 @@ static int de_thread(struct task_struct *tsk)
__set_current_state(TASK_KILLABLE);
write_unlock_irq(&tasklist_lock);
cgroup_threadgroup_change_end(tsk);
schedule();
freezable_schedule();
if (unlikely(__fatal_signal_pending(tsk)))
goto killed;
}