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covscan: free wwid strings in lvmcache

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This commit is contained in:
David Teigland 2022-09-21 12:15:13 -05:00
parent e97cf8552c
commit c21783d492
1 changed files with 31 additions and 15 deletions
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46
lib/cache/lvmcache.c vendored
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@ -644,8 +644,10 @@ static int _all_multipath_components(struct cmd_context *cmd, struct lvmcache_in
struct device *dev_mp = NULL;
struct device *dev1 = NULL;
struct device *dev;
char wwid1_buf[DEV_WWID_SIZE] = { 0 };
char wwid_buf[DEV_WWID_SIZE] = { 0 };
const char *wwid1 = NULL;
const char *wwid;
const char *wwid = NULL;
int diff_wwid = 0;
int same_wwid = 0;
int dev_is_mp;
@ -667,14 +669,23 @@ static int _all_multipath_components(struct cmd_context *cmd, struct lvmcache_in
dev = info->dev;
dev_is_mp = (cmd->dev_types->device_mapper_major == MAJOR(dev->dev)) && dev_has_mpath_uuid(cmd, dev, NULL);
/*
* dev_mpath_component_wwid allocates wwid from dm_pool,
* device_id_system_read does not and needs free.
*/
if (dev_is_mp) {
if ((wwid1 = dev_mpath_component_wwid(cmd, dev))) {
strncpy(wwid1_buf, wwid1, DEV_WWID_SIZE);
dev_mp = dev;
dev1 = dev;
}
} else {
if ((wwid1 = device_id_system_read(cmd, dev, DEV_ID_TYPE_SYS_WWID)))
if ((wwid1 = device_id_system_read(cmd, dev, DEV_ID_TYPE_SYS_WWID))) {
strncpy(wwid1_buf, wwid1, DEV_WWID_SIZE);
free((char *)wwid1);
dev1 = dev;
}
}
}
@ -682,31 +693,36 @@ static int _all_multipath_components(struct cmd_context *cmd, struct lvmcache_in
dev = devl->dev;
dev_is_mp = (cmd->dev_types->device_mapper_major == MAJOR(dev->dev)) && dev_has_mpath_uuid(cmd, dev, NULL);
if (dev_is_mp)
wwid = dev_mpath_component_wwid(cmd, dev);
else
wwid = device_id_system_read(cmd, dev, DEV_ID_TYPE_SYS_WWID);
if (dev_is_mp) {
if ((wwid = dev_mpath_component_wwid(cmd, dev)))
strncpy(wwid_buf, wwid, DEV_WWID_SIZE);
} else {
if ((wwid = device_id_system_read(cmd, dev, DEV_ID_TYPE_SYS_WWID))) {
strncpy(wwid_buf, wwid, DEV_WWID_SIZE);
free((char *)wwid);
}
}
if (!wwid && wwid1) {
if (!wwid_buf[0] && wwid1_buf[0]) {
log_debug("Different wwids for duplicate PVs %s %s %s none",
dev_name(dev1), wwid1, dev_name(dev));
dev_name(dev1), wwid1_buf, dev_name(dev));
diff_wwid++;
continue;
}
if (!wwid)
if (!wwid_buf[0])
continue;
if (!wwid1) {
wwid1 = wwid;
if (!wwid1_buf[0]) {
memcpy(wwid1_buf, wwid_buf, DEV_WWID_SIZE);
dev1 = dev;
continue;
}
/* Different wwids indicates these are not multipath components. */
if (strcmp(wwid1, wwid)) {
if (strcmp(wwid1_buf, wwid_buf)) {
log_debug("Different wwids for duplicate PVs %s %s %s %s",
dev_name(dev1), wwid1, dev_name(dev), wwid);
dev_name(dev1), wwid1_buf, dev_name(dev), wwid_buf);
diff_wwid++;
continue;
}
@ -714,7 +730,7 @@ static int _all_multipath_components(struct cmd_context *cmd, struct lvmcache_in
/* Different mpath devs with the same wwid shouldn't happen. */
if (dev_is_mp && dev_mp) {
log_print("Found multiple multipath devices for PVID %s WWID %s: %s %s",
pvid, wwid1, dev_name(dev_mp), dev_name(dev));
pvid, wwid1_buf, dev_name(dev_mp), dev_name(dev));
continue;
}
@ -730,7 +746,7 @@ static int _all_multipath_components(struct cmd_context *cmd, struct lvmcache_in
return 0;
if (dev_mp)
log_debug("Found multipath device %s for PVID %s WWID %s.", dev_name(dev_mp), pvid, wwid1);
log_debug("Found multipath device %s for PVID %s WWID %s.", dev_name(dev_mp), pvid, wwid1_buf);
*dev_mpath = dev_mp;
return 1;