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thunderbolt: Use NULL instead of 0 in switch.c

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

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sachin Kamat 2014-06-20 14:32:31 +05:30 committed by Greg Kroah-Hartman
parent 10fefe56bb
commit c9c2deef45
1 changed files with 3 additions and 3 deletions
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6
drivers/thunderbolt/switch.c
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@ -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);
}