commit 9652249a2d02318a28a63a7b5711f25652e8f969
author Bram Moolenaar <Bram@vim.org> Mon Oct 17 20:00:26 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Mon Oct 17 20:00:26 2022 +0100
tree 3b6ed750e0944859ce1d96e57c0a1d992f403c3f
parent b99e6e6c5fbabbade6431fb555c4fe7409a9269a

patch 9.0.0785: memory leak with empty shell command

Problem:    Memory leak with empty shell command.
Solution:   Free the allocated memory when bailing out.

src/ex_cmds.c

diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index f5271ea..93f9dd7 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -960,7 +960,10 @@
     // Don't do anything if there is no command as there isn't really anything
     // useful in running "sh -c ''".  Avoids changing "prevcmd".
     if (STRLEN(newcmd) == 0)
+    {
+	vim_free(newcmd);
 	return;
+    }
 
     vim_free(prevcmd);
     prevcmd = newcmd;