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tracing: Remove unneeded goto out logic

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[ Upstream commit c89504a703fb779052213add0e8ed642f4a4f1c8 ]

Several places in the trace.c file there's a goto out where the out is
simply a return. There's no reason to jump to the out label if it's not
doing any more logic but simply returning from the function.

Replace the goto outs with a return and remove the out labels.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20250801203857.538726745@kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steven Rostedt
2025-08-24 10:08:37 -04:00
committed by Greg Kroah-Hartman
parent 2eee98071f
commit 78c8e107fe
1 changed files with 14 additions and 23 deletions
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37
kernel/trace/trace.c
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@@ -1613,7 +1613,7 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
ret = get_user(ch, ubuf++);
if (ret)
goto out;
return ret;
read++;
cnt--;
@@ -1627,7 +1627,7 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
while (cnt && isspace(ch)) {
ret = get_user(ch, ubuf++);
if (ret)
goto out;
return ret;
read++;
cnt--;
}
@@ -1637,8 +1637,7 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
/* only spaces were written */
if (isspace(ch) || !ch) {
*ppos += read;
ret = read;
goto out;
return read;
}
}
@@ -1646,13 +1645,12 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
while (cnt && !isspace(ch) && ch) {
if (parser->idx < parser->size - 1)
parser->buffer[parser->idx++] = ch;
else {
ret = -EINVAL;
goto out;
}
else
return -EINVAL;
ret = get_user(ch, ubuf++);
if (ret)
goto out;
return ret;
read++;
cnt--;
}
@@ -1667,15 +1665,11 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
/* Make sure the parsed string always terminates with '\0'. */
parser->buffer[parser->idx] = 0;
} else {
ret = -EINVAL;
goto out;
return -EINVAL;
}
*ppos += read;
ret = read;
out:
return ret;
return read;
}
/* TODO add a seq_buf_to_buffer() */
@@ -2139,10 +2133,10 @@ int __init register_tracer(struct tracer *type)
mutex_unlock(&trace_types_lock);
if (ret || !default_bootup_tracer)
goto out_unlock;
return ret;
if (strncmp(default_bootup_tracer, type->name, MAX_TRACER_SIZE))
goto out_unlock;
return 0;
printk(KERN_INFO "Starting tracer '%s'\n", type->name);
/* Do we want this tracer to start on bootup? */
@@ -2154,8 +2148,7 @@ int __init register_tracer(struct tracer *type)
/* disable other selftests, since this will break it. */
disable_tracing_selftest("running a tracer");
out_unlock:
return ret;
return 0;
}
static void tracing_reset_cpu(struct array_buffer *buf, int cpu)
@@ -8240,11 +8233,10 @@ ftrace_trace_snapshot_callback(struct trace_array *tr, struct ftrace_hash *hash,
out_reg:
ret = tracing_alloc_snapshot_instance(tr);
if (ret < 0)
goto out;
return ret;
ret = register_ftrace_function_probe(glob, tr, ops, count);
out:
return ret < 0 ? ret : 0;
}
@@ -9746,7 +9738,7 @@ __init static int tracer_alloc_buffers(void)
BUILD_BUG_ON(TRACE_ITER_LAST_BIT > TRACE_FLAGS_MAX_SIZE);
if (!alloc_cpumask_var(&tracing_buffer_mask, GFP_KERNEL))
goto out;
return -ENOMEM;
if (!alloc_cpumask_var(&global_trace.tracing_cpumask, GFP_KERNEL))
goto out_free_buffer_mask;
@@ -9857,7 +9849,6 @@ out_free_cpumask:
free_cpumask_var(global_trace.tracing_cpumask);
out_free_buffer_mask:
free_cpumask_var(tracing_buffer_mask);
out:
return ret;
}