commit 6ee9658774942f7448af700fc04df0335796a3db
author Bram Moolenaar <Bram@vim.org> Sat Apr 27 22:06:37 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Apr 27 22:06:37 2019 +0200
tree 87f99c37e22f07e73e244da78686c7e59a8457f1
parent 00aa069db8132851a91cfc5ca7f58ef945c75c73

patch 8.1.1219: not checking for NULL return from alloc()

Problem:    Not checking for NULL return from alloc().
Solution:   Add checks. (Martin Kunev, closes #4303, closes #4174)

src/beval.c

diff --git a/src/beval.c b/src/beval.c
index c5fa220..d51a3f5 100644
--- a/src/beval.c
+++ b/src/beval.c
@@ -127,6 +127,8 @@
 #ifdef FEAT_VARTABS
 		vim_free(beval->vts);
 		beval->vts = tabstop_copy(wp->w_buffer->b_p_vts_array);
+		if (wp->w_buffer->b_p_vts_array != NULL && beval->vts == NULL)
+		    return FAIL;
 #endif
 		beval->ts = wp->w_buffer->b_p_ts;
 		return OK;