diff options
| author | zhong jiang <zhongjiang@huawei.com> | 2018-10-30 15:04:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-31 08:54:12 -0700 |
| commit | ea6f650465c61c70b4c96648ed2cb8a0c55db337 (patch) | |
| tree | 76a4bf7f915a05fa348bef632f2449bce4cb23b7 | |
| parent | de0d22e50cd3d57277f073ccf65d57aa519d6888 (diff) | |
kernel/fail_function.c: remove meaningless null pointer check before debugfs_remove_recursive
debugfs_remove_recursive() has taken the null pointer into account. just
remove the null check before debugfs_remove_recursive().
Link: http://lkml.kernel.org/r/1537494404-16473-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | kernel/fail_function.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/fail_function.c b/kernel/fail_function.c index bc80a4e268c0..17f75b545f66 100644 --- a/kernel/fail_function.c +++ b/kernel/fail_function.c @@ -173,8 +173,7 @@ static void fei_debugfs_remove_attr(struct fei_attr *attr) struct dentry *dir; dir = debugfs_lookup(attr->kp.symbol_name, fei_debugfs_dir); - if (dir) - debugfs_remove_recursive(dir); + debugfs_remove_recursive(dir); } static int fei_kprobe_handler(struct kprobe *kp, struct pt_regs *regs) |