BUG_ON() Conversion in drivers/char

this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 48d795bb8c4b..811dadb9ce3e 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -543,14 +543,12 @@ void tty_ldisc_put(int disc)
         struct tty_ldisc *ld;
         unsigned long flags;
         
-        if (disc < N_TTY || disc >= NR_LDISCS)
-                BUG();
+        BUG_ON(disc < N_TTY || disc >= NR_LDISCS);
                 
         spin_lock_irqsave(&tty_ldisc_lock, flags);
         ld = &tty_ldiscs[disc];
-        if(ld->refcount == 0)
-                BUG();
-        ld->refcount --;
+        BUG_ON(ld->refcount == 0);
+        ld->refcount--;
         module_put(ld->owner);
         spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 }
@@ -645,8 +643,7 @@ void tty_ldisc_deref(struct tty_ldisc *ld)
 {
         unsigned long flags;
 
-        if(ld == NULL)
-                BUG();
+        BUG_ON(ld == NULL);
                 
         spin_lock_irqsave(&tty_ldisc_lock, flags);
         if(ld->refcount == 0)