Messages in this thread Patch in this message | | | Date | Thu, 03 Aug 2017 06:04:55 -0400 | From | Steven Rostedt <> | Subject | [for-next][PATCH 2/3] tracing: Missing error code in tracer_alloc_buffers() |
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From: Dan Carpenter <dan.carpenter@oracle.com>
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> --- kernel/trace/trace.c | 1 + 1 file changed, 1 insertion(+)
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; -- 2.13.2
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