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authorDan Carpenter <dan.carpenter@oracle.com>2017-08-01 14:02:01 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-08-02 14:19:57 -0400
commit147d88e0b5eb90191bc5c12ca0a3c410b75a13d2 (patch)
tree7eb357572a051669afc7e6c6660011b07898a931 /kernel
parent4bb0f0e73c8c30917d169c4a0f1ac083690c545b (diff)
downloadlinux-147d88e0b5eb90191bc5c12ca0a3c410b75a13d2.tar.bz2
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace.c1
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;