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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-22 14:46:24 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-22 14:46:24 -0800 |
| commit | bb27d4998a9e8767674e8eda225c82cc149e5bc8 (patch) | |
| tree | dcabb8b8cc510003637323b30ed414b1a1ec86f6 /drivers/tty/tty_mutex.c | |
| parent | 9676e84dfd641e3366a41f2c45ac5c55dbac820f (diff) | |
| parent | 35bf7692e765c2275bf93fe573f7ca868ab73453 (diff) | |
| download | linux-bb27d4998a9e8767674e8eda225c82cc149e5bc8.tar.bz2 | |
Merge char-misc-next into staging-next
This resolves the merge issues and confusions people were having with
the goldfish drivers due to changes for them showing up in two different
trees.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_mutex.c')
| -rw-r--r-- | drivers/tty/tty_mutex.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c index d2f3c4cd697f..dfa9ec03fa8e 100644 --- a/drivers/tty/tty_mutex.c +++ b/drivers/tty/tty_mutex.c @@ -21,10 +21,15 @@ EXPORT_SYMBOL(tty_lock); int tty_lock_interruptible(struct tty_struct *tty) { + int ret; + if (WARN(tty->magic != TTY_MAGIC, "L Bad %p\n", tty)) return -EIO; tty_kref_get(tty); - return mutex_lock_interruptible(&tty->legacy_mutex); + ret = mutex_lock_interruptible(&tty->legacy_mutex); + if (ret) + tty_kref_put(tty); + return ret; } void __lockfunc tty_unlock(struct tty_struct *tty) |