regcomp.c: Use SvREFCNT_inc_NN()

We know this is non-null as it panics a little ways above unless that's
the case.

1 files changed, 1 insertions, 1 deletions

diff --git a/regcomp.c b/regcomp.c
index f4387efee1..91928d3329 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -11234,7 +11234,7 @@ S_reg(pTHX_ RExC_state_t *pRExC_state, I32 paren, I32 *flagp, U32 depth)
                         /* Yes this does cause a memory leak in debugging Perls
                          * */
                         if (!av_store(RExC_paren_name_list,
-                                      RExC_npar, SvREFCNT_inc(svname)))
+                                      RExC_npar, SvREFCNT_inc_NN(svname)))
                             SvREFCNT_dec_NN(svname);
 #endif