dlm/fix-various-deadcode-issues.patch
2024-02-29 21:28:05 +08:00

80 lines
2.1 KiB
Diff

From 3fb4693cc10a81f32e850e5efef999cb2f06d1e9 Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Aug 17 2023 17:06:18 +0000
Subject: dlm_controld: fix various deadcode issues
This patch fix various deadcode issues discovered by coverity. The flags
from the shutdown_callback() aren't flags, we need to use == to get the
shutdown request type. The value COROSYNC_CFG_SHUTDOWN_FLAG_REQUEST is 0
and will never be true in this case.
The strstr() need to be incremented after checking on NULL.
The &dlm_options[ind] can't never be NULL, we check if name is check to
indicate an entry which is not being used.
---
diff --git a/dlm_controld/config.c b/dlm_controld/config.c
index b15527b..9332bd2 100644
--- a/dlm_controld/config.c
+++ b/dlm_controld/config.c
@@ -286,7 +286,7 @@ void set_opt_file(int update)
if (ind < 0)
continue;
o = &dlm_options[ind];
- if (!o)
+ if (!o->name)
continue;
scanned_dlm_opt[ind] = 1;
diff --git a/dlm_controld/lib.c b/dlm_controld/lib.c
index a21150f..3ff0680 100644
--- a/dlm_controld/lib.c
+++ b/dlm_controld/lib.c
@@ -269,10 +269,13 @@ static unsigned int kv(char *str, const char *k)
if (!p)
return 0;
- p = strstr(p, "=") + 1;
+ p = strstr(p, "=");
if (!p)
return 0;
+ /* move pointer after '=' */
+ p++;
+
memset(valstr, 0, 64);
for (i = 0; i < 64; i++) {
@@ -299,10 +302,13 @@ static char *ks(char *str, const char *k)
if (!p)
return 0;
- p = strstr(p, "=") + 1;
+ p = strstr(p, "=");
if (!p)
return 0;
+ /* move pointer after '=' */
+ p++;
+
memset(valstr, 0, 64);
for (i = 0; i < 64; i++) {
diff --git a/dlm_controld/member.c b/dlm_controld/member.c
index d567c11..f297b45 100644
--- a/dlm_controld/member.c
+++ b/dlm_controld/member.c
@@ -345,7 +345,7 @@ void kick_node_from_cluster(int nodeid)
static void shutdown_callback(corosync_cfg_handle_t h,
corosync_cfg_shutdown_flags_t flags)
{
- if (flags & COROSYNC_CFG_SHUTDOWN_FLAG_REQUEST) {
+ if (flags == COROSYNC_CFG_SHUTDOWN_FLAG_REQUEST) {
if (list_empty(&lockspaces)) {
log_debug("shutdown request yes");
corosync_cfg_replyto_shutdown(ch, COROSYNC_CFG_SHUTDOWN_FLAG_YES);