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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2016-11-28 21:03:21 +0300
committerSteven Rostedt <rostedt@goodmis.org>2016-12-09 17:13:30 +0300
commit8cf868affdc459beee1a941df0cfaba1673740e3 (patch)
tree64dd73ba504f458831177e091f90f0324962d226 /include/trace
parent38e11df134297ea3860c7aad8263ece27db01308 (diff)
downloadlinux-8cf868affdc459beee1a941df0cfaba1673740e3.tar.xz
tracing: Have the reg function allow to fail
Some tracepoints have a registration function that gets enabled when the tracepoint is enabled. There may be cases that the registraction function must fail (for example, can't allocate enough memory). In this case, the tracepoint should also fail to register, otherwise the user would not know why the tracepoint is not working. Cc: David Howells <dhowells@redhat.com> Cc: Seiji Aguchi <seiji.aguchi@hds.com> Cc: Anton Blanchard <anton@samba.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/i2c.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/trace/events/i2c.h b/include/trace/events/i2c.h
index fe17187df65d..4abb8eab34d3 100644
--- a/include/trace/events/i2c.h
+++ b/include/trace/events/i2c.h
@@ -20,7 +20,7 @@
/*
* drivers/i2c/i2c-core.c
*/
-extern void i2c_transfer_trace_reg(void);
+extern int i2c_transfer_trace_reg(void);
extern void i2c_transfer_trace_unreg(void);
/*