net/netlabel: Add kmalloc NULL tests
Author: Julia Lawall <julia@diku.dk>
The test on map4 should be a test on map6.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
//
@@
expression *x;
identifier f;
constant char *C;
@@
x = \(kmalloc\|kcalloc\|kzalloc\)(...);
... when != x == NULL
when != x != NULL
when != (x || ...)
(
kfree(x)
|
f(...,C,...,x,...)
|
*f(...,x,...)
|
*x->f
)
//
Signed-off-by: Julia Lawall
Acked-by: Paul Moore
Signed-off-by: David S. Miller
---
net/netlabel/netlabel_kapi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index b0e582f..16e6c43 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -151,7 +151,7 @@ int netlbl_cfg_unlbl_map_add(const char *domain,
addr6 = addr;
mask6 = mask;
map6 = kzalloc(sizeof(*map6), GFP_ATOMIC);
- if (map4 == NULL)
+ if (map6 == NULL)
goto cfg_unlbl_map_add_failure;
map6->type = NETLBL_NLTYPE_UNLABELED;
ipv6_addr_copy(&map6->list.addr, addr6); |
---
net/netlabel/netlabel_kapi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index b0e582f..16e6c43 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -151,7 +151,7 @@ int netlbl_cfg_unlbl_map_add(const char *domain,
addr6 = addr;
mask6 = mask;
map6 = kzalloc(sizeof(*map6), GFP_ATOMIC);
- if (map4 == NULL)
+ if (map6 == NULL)
goto cfg_unlbl_map_add_failure;
map6->type = NETLBL_NLTYPE_UNLABELED;
ipv6_addr_copy(&map6->list.addr, addr6);