[PATCH 3/5] Src/exec: avoid fd leak on fork() failure

[Kamil Dudka <kdudka@redhat.com>]

Detected by Coverity Analysis:

Error: RESOURCE_LEAK (CWE-772):
zsh-5.5.1/Src/exec.c:4680: open_fn: Returning handle opened by "open".
zsh-5.5.1/Src/exec.c:4680: var_assign: Assigning: "fd" = handle returned from "open(nam, 449, 384)".
zsh-5.5.1/Src/exec.c:4810: leaked_handle: Handle variable "fd" going out of scope leaks the handle.
4808|   	/* fork or open error */
4809|   	child_unblock();
4810|-> 	return nam;
4811|       } else if (pid) {
4812|   	int os;
---
 Src/exec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Src/exec.c b/Src/exec.c
index c4a2740c0..042ba065a 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -4805,7 +4805,8 @@ getoutputfile(char *cmd, char **eptr)
     }
 
     if ((cmdoutpid = pid = zfork(NULL)) == -1) {
-	/* fork or open error */
+	/* fork error */
+	close(fd);
 	child_unblock();
 	return nam;
     } else if (pid) {
-- 
2.17.2