sched/wqueue: Change the return type of work_notifier_teardown to void

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

drivers/usbhost/usbhost_storage.c

@@ -2435,16 +2435,15 @@ int usbhost_msc_notifier_setup(worker_t worker, uint8_t event, char sdchar,
  *         usbhost_msc_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int usbhost_msc_notifier_teardown(int key)
+void usbhost_msc_notifier_teardown(int key)
 {
   /* This is just a simple wrapper around work_notifier_teardown(). */
 
-  return work_notifier_teardown(key);
+  work_notifier_teardown(key);
 }
 
 /****************************************************************************

include/nuttx/mm/iob.h

@@ -349,13 +349,12 @@ int iob_notifier_setup(int qid, worker_t worker, FAR void *arg);
  *         iob_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
 #ifdef CONFIG_IOB_NOTIFIER
-int iob_notifier_teardown(int key);
+void iob_notifier_teardown(int key);
 #endif
 
 /****************************************************************************

include/nuttx/usb/usbhost.h

@@ -1093,12 +1093,11 @@ int usbhost_msc_notifier_setup(worker_t worker, uint8_t event, char sdchar,
  *         usbhost_msc_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int usbhost_msc_notifier_teardown(int key);
+void usbhost_msc_notifier_teardown(int key);
 
 /****************************************************************************
  * Name: usbhost_msc_notifier_signal

include/nuttx/wqueue.h

@@ -500,13 +500,12 @@ int work_notifier_setup(FAR struct work_notifier_s *info);
  *         work_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
 #ifdef CONFIG_WQUEUE_NOTIFIER
-int work_notifier_teardown(int key);
+void work_notifier_teardown(int key);
 #endif
 
 /****************************************************************************

mm/iob/iob_notifier.c

@@ -92,16 +92,15 @@ int iob_notifier_setup(int qid, worker_t worker, FAR void *arg)
  *         iob_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int iob_notifier_teardown(int key)
+void iob_notifier_teardown(int key)
 {
   /* This is just a simple wrapper around work_notifier_teardown(). */
 
-  return work_notifier_teardown(key);
+  work_notifier_teardown(key);
 }
 
 /****************************************************************************

net/netdev/netdev.h

@@ -478,13 +478,12 @@ int netdown_notifier_setup(worker_t worker, FAR struct net_driver_s *dev,
  *         netdown_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
 #ifdef CONFIG_NETDOWN_NOTIFIER
-int netdown_notifier_teardown(int key);
+void netdown_notifier_teardown(int key);
 #endif
 
 /****************************************************************************

net/netdev/netdown_notifier.c

@@ -105,16 +105,15 @@ int netdown_notifier_setup(worker_t worker, FAR struct net_driver_s *dev,
  *         netdown_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int netdown_notifier_teardown(int key)
+void netdown_notifier_teardown(int key)
 {
   /* This is just a simple wrapper around work_notifier_teardown(). */
 
-  return work_notifier_teardown(key);
+  work_notifier_teardown(key);
 }
 
 /****************************************************************************

net/tcp/tcp.h

@@ -1830,13 +1830,12 @@ int tcp_disconnect_notifier_setup(worker_t worker,
  *         tcp_readahead_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
 #ifdef CONFIG_NET_TCP_NOTIFIER
-int tcp_notifier_teardown(int key);
+void tcp_notifier_teardown(int key);
 #endif
 
 /****************************************************************************

net/tcp/tcp_notifier.c

@@ -217,16 +217,15 @@ int tcp_disconnect_notifier_setup(worker_t worker,
  *         tcp_readahead_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int tcp_notifier_teardown(int key)
+void tcp_notifier_teardown(int key)
 {
   /* This is just a simple wrapper around work_notifier_teardown(). */
 
-  return work_notifier_teardown(key);
+  work_notifier_teardown(key);
 }
 
 /****************************************************************************

net/udp/udp.h

@@ -832,13 +832,12 @@ int udp_writebuffer_notifier_setup(worker_t worker,
  *         udp_readahead_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
 #ifdef CONFIG_NET_UDP_NOTIFIER
-int udp_notifier_teardown(int key);
+void udp_notifier_teardown(int key);
 #endif
 
 /****************************************************************************

net/udp/udp_notifier.c

@@ -164,16 +164,15 @@ int udp_writebuffer_notifier_setup(worker_t worker,
  *         udp_readahead_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int udp_notifier_teardown(int key)
+void udp_notifier_teardown(int key)
 {
   /* This is just a simple wrapper around work_notifier_teardown(). */
 
-  return work_notifier_teardown(key);
+  work_notifier_teardown(key);
 }
 
 /****************************************************************************

sched/wqueue/kwork_notifier.c

@@ -276,16 +276,14 @@ int work_notifier_setup(FAR struct work_notifier_s *info)
  *         work_notifier_setup().
  *
  * Returned Value:
- *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   None.
- *   any failure.
  *
  ****************************************************************************/
 
-int work_notifier_teardown(int key)
+void work_notifier_teardown(int key)
 {
   FAR struct work_notifier_entry_s *notifier;
   irqstate_t flags;
-  int ret = OK;
 
   /* Disable interrupts very briefly. */
 
@@ -296,13 +294,7 @@ int work_notifier_teardown(int key)
    */
 
   notifier = work_notifier_find(key);
-  if (notifier == NULL)
+  if (notifier != NULL)
-    {
-      /* There is no notification with this key in the pending list */
-
-      ret = -ENOENT;
-    }
-  else
     {
       /* Found it!  Remove the notification from the pending list */
 
@@ -314,7 +306,6 @@ int work_notifier_teardown(int key)
     }
 
   leave_critical_section(flags);
-  return ret;
 }
 
 /****************************************************************************