From: "J. Bruce Fields" <bfields@xxxxxxxxxx>
Technically the initialization in the NULL case isn't even needed as the
only caller already has target zeroed out, but it seems safer to keep
copy_cred generic.
Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 6b800b5b8fed..db53df069069 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1857,15 +1857,24 @@ static void copy_clid(struct nfs4_client *target, struct nfs4_client *source)
target->cl_clientid.cl_id = source->cl_clientid.cl_id;
}
-static int copy_cred(struct svc_cred *target, struct svc_cred *source)
+int strdup_if_nonnull(char **target, char *source)
{
- if (source->cr_principal) {
- target->cr_principal =
- kstrdup(source->cr_principal, GFP_KERNEL);
- if (target->cr_principal == NULL)
+ if (source) {
+ *target = kstrdup(source, GFP_KERNEL);
+ if (!*target)
return -ENOMEM;
} else
- target->cr_principal = NULL;
+ *target = NULL;
+ return 0;
+}
+
+static int copy_cred(struct svc_cred *target, struct svc_cred *source)
+{
+ int ret;
+
+ ret = strdup_if_nonnull(&target->cr_principal, source->cr_principal);
+ if (ret)
+ return ret;
target->cr_flavor = source->cr_flavor;
target->cr_uid = source->cr_uid;
target->cr_gid = source->cr_gid;
--
2.5.0
--
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