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Fix memleak in zfs_do_* and zpool_do_* 

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: luozhengzheng <luo.zhengzheng@zte.com.cn>
Closes #5056
This commit is contained in:
luozhengzheng 2016-09-01 10:23:10 +08:00 committed by Brian Behlendorf
parent e33da554c5
commit a425f5bff9
2 changed files with 58 additions and 15 deletions
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45
cmd/zfs/zfs_main.c
View File

@ -659,8 +659,10 @@ zfs_do_clone(int argc, char **argv)
while ((c = getopt(argc, argv, "o:p")) != -1) {
switch (c) {
case 'o':
if (parseprop(props, optarg) != 0)
if (parseprop(props, optarg) != 0) {
nvlist_free(props);
return (1);
}
break;
case 'p':
parents = B_TRUE;
@ -692,8 +694,10 @@ zfs_do_clone(int argc, char **argv)
}
/* open the source dataset */
if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL)
if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) {
nvlist_free(props);
return (1);
}
if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_VOLUME)) {
@ -703,11 +707,17 @@ zfs_do_clone(int argc, char **argv)
* complain.
*/
if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM |
ZFS_TYPE_VOLUME))
ZFS_TYPE_VOLUME)) {
zfs_close(zhp);
nvlist_free(props);
return (0);
if (zfs_create_ancestors(g_zfs, argv[1]) != 0)
}
if (zfs_create_ancestors(g_zfs, argv[1]) != 0) {
zfs_close(zhp);
nvlist_free(props);
return (1);
}
}
/* pass to libzfs */
ret = zfs_clone(zhp, argv[1], props);
@ -1280,8 +1290,10 @@ zfs_do_destroy(int argc, char **argv)
*at = '\0';
zhp = zfs_open(g_zfs, argv[0],
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
if (zhp == NULL)
if (zhp == NULL) {
nvlist_free(cb.cb_nvl);
return (1);
}
cb.cb_snapspec = at + 1;
if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 ||
@ -1370,7 +1382,7 @@ zfs_do_destroy(int argc, char **argv)
"cannot destroy bookmark");
}
nvlist_free(cb.cb_nvl);
nvlist_free(nvl);
return (err);
} else {
@ -3645,8 +3657,11 @@ zfs_do_snapshot(int argc, char **argv)
while ((c = getopt(argc, argv, "ro:")) != -1) {
switch (c) {
case 'o':
if (parseprop(props, optarg) != 0)
if (parseprop(props, optarg) != 0) {
nvlist_free(sd.sd_nvl);
nvlist_free(props);
return (1);
}
break;
case 'r':
sd.sd_recursive = B_TRUE;
@ -3937,8 +3952,10 @@ zfs_do_receive(int argc, char **argv)
while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) {
switch (c) {
case 'o':
if (parseprop(props, optarg) != 0)
if (parseprop(props, optarg) != 0) {
nvlist_free(props);
return (1);
}
break;
case 'd':
flags.isprefix = B_TRUE;
@ -4012,9 +4029,12 @@ zfs_do_receive(int argc, char **argv)
ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) {
zfs_handle_t *zhp = zfs_open(g_zfs,
namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
if (zhp == NULL)
if (zhp == NULL) {
nvlist_free(props);
return (1);
}
err = zfs_destroy(zhp, B_FALSE);
zfs_close(zhp);
} else {
zfs_handle_t *zhp = zfs_open(g_zfs,
argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME);
@ -4027,11 +4047,14 @@ zfs_do_receive(int argc, char **argv)
gettext("'%s' does not have any "
"resumable receive state to abort\n"),
argv[0]);
nvlist_free(props);
zfs_close(zhp);
return (1);
}
err = zfs_destroy(zhp, B_FALSE);
zfs_close(zhp);
}
nvlist_free(props);
return (err != 0);
}
@ -4040,9 +4063,11 @@ zfs_do_receive(int argc, char **argv)
gettext("Error: Backup stream can not be read "
"from a terminal.\n"
"You must redirect standard input.\n"));
nvlist_free(props);
return (1);
}
err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL);
nvlist_free(props);
return (err != 0);
}

28
cmd/zpool/zpool_main.c
View File

@ -1296,6 +1296,7 @@ zpool_do_destroy(int argc, char **argv)
if (zpool_disable_datasets(zhp, force) != 0) {
(void) fprintf(stderr, gettext("could not destroy '%s': "
"could not unmount datasets\n"), zpool_get_name(zhp));
zpool_close(zhp);
return (1);
}
@ -2343,6 +2344,7 @@ zpool_do_import(int argc, char **argv)
if (searchdirs != NULL)
free(searchdirs);
nvlist_free(props);
nvlist_free(policy);
return (1);
}
@ -2449,6 +2451,8 @@ zpool_do_import(int argc, char **argv)
if (envdup != NULL)
free(envdup);
nvlist_free(policy);
nvlist_free(pools);
nvlist_free(props);
return (1);
}
@ -4749,13 +4753,16 @@ zpool_do_attach_or_replace(int argc, char **argv, int replacing)
usage(B_FALSE);
}
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
nvlist_free(props);
return (1);
}
if (zpool_get_config(zhp, NULL) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
nvlist_free(props);
return (1);
}
@ -4763,11 +4770,13 @@ zpool_do_attach_or_replace(int argc, char **argv, int replacing)
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
nvlist_free(props);
return (1);
}
ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
nvlist_free(props);
nvlist_free(nvroot);
zpool_close(zhp);
@ -4973,8 +4982,10 @@ zpool_do_split(int argc, char **argv)
argc -= 2;
argv += 2;
if ((zhp = zpool_open(g_zfs, srcpool)) == NULL)
if ((zhp = zpool_open(g_zfs, srcpool)) == NULL) {
nvlist_free(props);
return (1);
}
config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
if (config == NULL) {
@ -4986,20 +4997,25 @@ zpool_do_split(int argc, char **argv)
print_vdev_tree(NULL, newpool, config, 0, B_FALSE,
flags.name_flags);
}
nvlist_free(config);
}
zpool_close(zhp);
if (ret != 0 || flags.dryrun || !flags.import)
if (ret != 0 || flags.dryrun || !flags.import) {
nvlist_free(config);
nvlist_free(props);
return (ret);
}
/*
* The split was successful. Now we need to open the new
* pool and import it.
*/
if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL)
if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL) {
nvlist_free(config);
nvlist_free(props);
return (1);
}
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
ret = 1;
@ -5009,6 +5025,8 @@ zpool_do_split(int argc, char **argv)
"different altroot\n"), "zpool import");
}
zpool_close(zhp);
nvlist_free(config);
nvlist_free(props);
return (ret);
}