[PATCH] MIPS: ftrace: Remove pointer comparison to 0 in prepare_ftrace_return

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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@xxxxxxxxxx>
---
 arch/mips/kernel/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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; */
-- 
2.11.0



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