From: Mathieu Malaterre <malat@debian.org>
Date: Wed, 17 Jan 2018 11:31:57 +0000 (+0100)
Subject: MIPS: ftrace: Remove pointer comparison to 0 in prepare_ftrace_return
X-Git-Tag: v4.16-rc1~47^2~38
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=83aa53eb5f34f48e6ff24aee02f879b50c949982;p=linux.git

MIPS: ftrace: Remove pointer comparison to 0 in prepare_ftrace_return

Replace pointer comparison to 0 with NULL in prepare_ftrace_return
to improve code readability. Identified with coccinelle script
'badzero.cocci'.

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Reviewed-by: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18494/
Signed-off-by: James Hogan <jhogan@kernel.org>
---

diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 99285be0e088..7f3dfdbc3657 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -361,7 +361,7 @@ void prepare_ftrace_return(unsigned long *parent_ra_addr, unsigned long self_ra,
 	 * If fails when getting the stack address of the non-leaf function's
 	 * ra, stop function graph tracer and return
 	 */
-	if (parent_ra_addr == 0)
+	if (parent_ra_addr == NULL)
 		goto out;
 #endif
 	/* *parent_ra_addr = return_hooker; */