ftrace: Pass retval through return in ftrace_dyn_arch_init()

No architecture uses the "data" parameter in ftrace_dyn_arch_init() in any
way, it just sets the value to 0. And this is used as a return value
in the caller -- ftrace_init, which just checks the retval against
zero.

Note there is also "return 0" in every ftrace_dyn_arch_init.  So it is
enough to check the retval and remove all the indirect sets of data on
all archs.

Link: http://lkml.kernel.org/r/1393268401-24379-3-git-send-email-jslaby@suse.cz

Cc: linux-arch@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 0 insertions, 3 deletions

diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 185ba258361b..013016bec9e1 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -206,9 +206,6 @@ int __init ftrace_dyn_arch_init(void *data)
         /* Remove "b ftrace_stub" to ensure ftrace_caller() is executed */
         ftrace_modify_code(MCOUNT_ADDR, INSN_NOP);
 
-        /* The return code is retured via data */
-        *(unsigned long *)data = 0;
-
         return 0;
 }
 #endif  /* CONFIG_DYNAMIC_FTRACE */