diff options
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 2d8ff903f113..715a23d5348f 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -41,6 +41,7 @@ #include <linux/mempolicy.h> #include <linux/freezer.h> #include <linux/debug_locks.h> +#include <linux/device/devres.h> #include <linux/lockdep.h> #include <linux/idr.h> #include <linux/jhash.h> @@ -5893,6 +5894,33 @@ struct workqueue_struct *alloc_workqueue_noprof(const char *fmt, } EXPORT_SYMBOL_GPL(alloc_workqueue_noprof); +static void devm_workqueue_release(void *res) +{ + destroy_workqueue(res); +} + +__printf(2, 5) struct workqueue_struct * +devm_alloc_workqueue(struct device *dev, const char *fmt, unsigned int flags, + int max_active, ...) +{ + struct workqueue_struct *wq; + va_list args; + int ret; + + va_start(args, max_active); + wq = alloc_workqueue(fmt, flags, max_active, args); + va_end(args); + if (!wq) + return NULL; + + ret = devm_add_action_or_reset(dev, devm_workqueue_release, wq); + if (ret) + return NULL; + + return wq; +} +EXPORT_SYMBOL_GPL(devm_alloc_workqueue); + #ifdef CONFIG_LOCKDEP __printf(1, 5) struct workqueue_struct * |