[PATCH 3/6] thunderbolt: Use NULL instead of 0 in switch.c

[Sachin Kamat]

The function returns a pointer. Hence return NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxxx>
---
 drivers/thunderbolt/switch.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 26e76e4aa835..aeb982969629 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -260,11 +260,11 @@ struct tb_switch *get_switch_at_route(struct tb_switch *sw, u64 route)
 	if (route == 0)
 		return sw;
 	if (next_port > sw->config.max_port_number)
-		return 0;
+		return NULL;
 	if (tb_is_upstream_port(&sw->ports[next_port]))
-		return 0;
+		return NULL;
 	if (!sw->ports[next_port].remote)
-		return 0;
+		return NULL;
 	return get_switch_at_route(sw->ports[next_port].remote->sw,
 				   route >> TB_ROUTE_SHIFT);
 }
-- 
1.7.9.5

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