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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-08-01 14:02:01 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2017-08-02 21:19:57 +0300 |
| commit | 147d88e0b5eb90191bc5c12ca0a3c410b75a13d2 (patch) | |
| tree | 7eb357572a051669afc7e6c6660011b07898a931 | |
| parent | 4bb0f0e73c8c30917d169c4a0f1ac083690c545b (diff) | |
| download | linux-147d88e0b5eb90191bc5c12ca0a3c410b75a13d2.tar.xz | |
tracing: Missing error code in tracer_alloc_buffers()
If ring_buffer_alloc() or one of the next couple function calls fail
then we should return -ENOMEM but the current code returns success.
Link: http://lkml.kernel.org/r/20170801110201.ajdkct7vwzixahvx@mwanda
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Fixes: b32614c03413 ('tracing/rb: Convert to hotplug state machine')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 784fb43b2abe..d815fc317e9d 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -8293,6 +8293,7 @@ __init static int tracer_alloc_buffers(void) if (ret < 0) goto out_free_cpumask; /* Used for event triggers */ + ret = -ENOMEM; temp_buffer = ring_buffer_alloc(PAGE_SIZE, RB_FL_OVERWRITE); if (!temp_buffer) goto out_rm_hp_state; |