/*
* Subject to the GPL, version 2.
*/
#include "xmalloc.h"
struct panic_handler {
void *arg;
pid_t pid;
bool is_enabled;
void (*on_panic)(void *arg);
struct panic_handler *next;
};
static struct panic_handler *panic_handlers;
void panic_handler_add(void (*on_panic)(void *arg), void *arg)
{
struct panic_handler *handler = xmallocz(sizeof(*handler));
handler->arg = arg;
handler->pid = getpid();
handler->is_enabled = true;
handler->on_panic = on_panic;
handler->next = panic_handlers;
panic_handlers = handler;
};
void call_panic_handlers(void)
{
struct panic_handler *it;
pid_t pid = getpid();
for (it = panic_handlers; it; it = it->next) {
if (it->pid == pid && it->is_enabled) {
it->is_enabled = false;
it->on_panic(it->arg);
}
}
}
gi/'>index : net-next.git
ASoC: ak4642: Implement suspend callback
Add the suspend callback to accompany the existing resume operation.
With the suspend/resume callbacks the regmap (regcache) state handling can
follow the recommended sequence.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>