[PATCH 13/14] tty: Merge conditional + error message + WARN_ON()

Peter Hurley
2015-11-08T18:03:08Z

WARN() does all of these things in one statement.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
---
drivers/tty/tty_mutex.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c
index 0efcf71..77703a3 100644
--- a/drivers/tty/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
@@ -12,11 +12,8 @@

void __lockfunc tty_lock(struct tty_struct *tty)
{
- if (tty->magic != TTY_MAGIC) {
- pr_err("L Bad %p\n", tty);
- WARN_ON(1);
+ if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty))
return;
- }
tty_kref_get(tty);
mutex_lock(&tty->legacy_mutex);
}
@@ -24,11 +21,8 @@ EXPORT_SYMBOL(tty_lock);

void __lockfunc tty_unlock(struct tty_struct *tty)
{
- if (tty->magic != TTY_MAGIC) {
- pr_err("U Bad %p\n", tty);
- WARN_ON(1);
+ if (WARN(tty->magic != TTY_MAGIC, "U Bad %p\n", tty))
return;
- }
mutex_unlock(&tty->legacy_mutex);
tty_kref_put(tty);
}
--
2.6.3