From 3e6f176f304ee8effec698ebaff6b7baecb5e1e6 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 22 Jan 2019 16:21:41 +0100 Subject: [PATCH] blktrace: no need to check return value of debugfs_create functions When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Jens Axboe Cc: Steven Rostedt Cc: Ingo Molnar Cc: linux-block@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- kernel/trace/blktrace.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index e1c6d79fb4cc..2d6e93ab0478 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -512,8 +512,6 @@ static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev, dir = debugfs_lookup(buts->name, blk_debugfs_root); if (!dir) bt->dir = dir = debugfs_create_dir(buts->name, blk_debugfs_root); - if (!dir) - goto err; bt->dev = dev; atomic_set(&bt->dropped, 0); @@ -522,12 +520,8 @@ static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev, ret = -EIO; bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt, &blk_dropped_fops); - if (!bt->dropped_file) - goto err; bt->msg_file = debugfs_create_file("msg", 0222, dir, bt, &blk_msg_fops); - if (!bt->msg_file) - goto err; bt->rchan = relay_open("trace", dir, buts->buf_size, buts->buf_nr, &blk_relay_callbacks, bt); -- 2.39.5