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authorYueHaibing <yuehaibing@huawei.com>2018-07-25 16:54:33 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-26 08:36:31 +0200
commitaf322ba0eb11572dc78bf6879ec7b256b3c09064 (patch)
treee96eb9ec6acc1df99569daa21681d125744c2e9a /net/xfrm
parentf075b4bd3db71187a0b8aa874d75b6ae9b987182 (diff)
xfrm: fix 'passing zero to ERR_PTR()' warning
[ Upstream commit 934ffce1343f22ed5e2d0bd6da4440f4848074de ] Fix a static code checker warning: net/xfrm/xfrm_policy.c:1836 xfrm_resolve_and_create_bundle() warn: passing zero to 'ERR_PTR' xfrm_tmpl_resolve return 0 just means no xdst found, return NULL instead of passing zero to ERR_PTR. Fixes: d809ec895505 ("xfrm: do not assume that template resolving always returns xfrms") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_policy.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 1f943d97dc29..d0dcfc68c043 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1873,7 +1873,10 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
/* Try to instantiate a bundle */
err = xfrm_tmpl_resolve(pols, num_pols, fl, xfrm, family);
if (err <= 0) {
- if (err != 0 && err != -EAGAIN)
+ if (err == 0)
+ return NULL;
+
+ if (err != -EAGAIN)
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
return ERR_PTR(err);
}