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-rw-r--r--net/dccp/feat.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 933a0ecf8d4..94a81b8e5ef 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -23,6 +23,20 @@
#define DCCP_FEAT_SP_NOAGREE (-123)
+/* copy constructor, fval must not already contain allocated memory */
+static int dccp_feat_clone_sp_val(dccp_feat_val *fval, u8 const *val, u8 len)
+{
+ fval->sp.len = len;
+ if (fval->sp.len > 0) {
+ fval->sp.vec = kmemdup(val, len, gfp_any());
+ if (fval->sp.vec == NULL) {
+ fval->sp.len = 0;
+ return -ENOBUFS;
+ }
+ }
+ return 0;
+}
+
int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
u8 *val, u8 len, gfp_t gfp)
{