[IPV4]: Fix inetpeer gcc-4.2 warnings
CC net/ipv4/inetpeer.o
net/ipv4/inetpeer.c: In function 'unlink_from_pool':
net/ipv4/inetpeer.c:297: warning: the address of 'stack' will always evaluate as 'true'
net/ipv4/inetpeer.c:297: warning: the address of 'stack' will always evaluate as 'true'
net/ipv4/inetpeer.c: In function 'inet_getpeer':
net/ipv4/inetpeer.c:409: warning: the address of 'stack' will always evaluate as 'true'
net/ipv4/inetpeer.c:409: warning: the address of 'stack' will always evaluate as 'true'
"Fix" by checking for != NULL.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 6cbce96..771031d 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -158,7 +158,7 @@
#define lookup(_daddr,_stack) \
({ \
struct inet_peer *u, **v; \
- if (_stack) { \
+ if (_stack != NULL) { \
stackptr = _stack; \
*stackptr++ = &peer_root; \
} \
@@ -169,7 +169,7 @@
v = &u->avl_left; \
else \
v = &u->avl_right; \
- if (_stack) \
+ if (_stack != NULL) \
*stackptr++ = v; \
u = *v; \
} \