wanrouter: fix sparse warnings: context imbalance

Impact: Attribute functions with __acquires(...) resp. __releases(...).

Fix this sparse warnings:
  net/wanrouter/wanproc.c:82:13: warning: context imbalance in 'r_start' - wrong count at exit
  net/wanrouter/wanproc.c:103:13: warning: context imbalance in 'r_stop' - unexpected unlock
  net/wanrouter/wanmain.c:765:13: warning: context imbalance in 'lock_adapter_irq' - wrong count at exit
  net/wanrouter/wanmain.c:771:13: warning: context imbalance in 'unlock_adapter_irq' - unexpected unlock

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 8 insertions, 2 deletions

diff --git a/net/wanrouter/wanmain.c b/net/wanrouter/wanmain.c
index 39701dec1dba..466e2d22d256 100644
--- a/net/wanrouter/wanmain.c
+++ b/net/wanrouter/wanmain.c
@@ -86,8 +86,10 @@ static int wanrouter_device_del_if(struct wan_device *wandev,
 
 static struct wan_device *wanrouter_find_device(char *name);
 static int wanrouter_delete_interface(struct wan_device *wandev, char *name);
-static void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
-static void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
+static void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+        __acquires(lock);
+static void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+        __releases(lock);
 
 
 
@@ -763,12 +765,14 @@ static int wanrouter_delete_interface(struct wan_device *wandev, char *name)
 }
 
 static void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+        __acquires(lock)
 {
         spin_lock_irqsave(lock, *smp_flags);
 }
 
 
 static void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags)
+        __releases(lock)
 {
         spin_unlock_irqrestore(lock, *smp_flags);
 }
diff --git a/net/wanrouter/wanproc.c b/net/wanrouter/wanproc.c
index 267f7ff49827..c44d96b3a437 100644
--- a/net/wanrouter/wanproc.c
+++ b/net/wanrouter/wanproc.c
@@ -80,6 +80,7 @@ static struct proc_dir_entry *proc_router;
  *      Iterator
  */
 static void *r_start(struct seq_file *m, loff_t *pos)
+        __acquires(kernel_lock)
 {
         struct wan_device *wandev;
         loff_t l = *pos;
@@ -101,6 +102,7 @@ static void *r_next(struct seq_file *m, void *v, loff_t *pos)
 }
 
 static void r_stop(struct seq_file *m, void *v)
+        __releases(kernel_lock)
 {
         unlock_kernel();
 }