diff options
| -rw-r--r-- | drivers/block/rbd.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index ae16cf615f02..338cfadad63f 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2842,15 +2842,16 @@ static inline char *dup_token(const char **buf, size_t *lenp) * Note: rbd_dev is assumed to have been initially zero-filled. */ static struct ceph_options *rbd_add_parse_args(struct rbd_device *rbd_dev, - const char *buf) + const char *buf, + struct rbd_options **opts) { size_t len; const char *mon_addrs; size_t mon_addrs_size; char *options; struct ceph_options *err_ptr = ERR_PTR(-EINVAL); - struct rbd_options rbd_opts; struct ceph_options *ceph_opts; + struct rbd_options *rbd_opts = NULL; /* The first four tokens are required */ @@ -2899,17 +2900,17 @@ static struct ceph_options *rbd_add_parse_args(struct rbd_device *rbd_dev, /* Initialize all rbd options to the defaults */ - rbd_opts.read_only = RBD_READ_ONLY_DEFAULT; + rbd_opts = kzalloc(sizeof (*rbd_opts), GFP_KERNEL); + if (!rbd_opts) + goto out_mem; + + rbd_opts->read_only = RBD_READ_ONLY_DEFAULT; ceph_opts = ceph_parse_options(options, mon_addrs, mon_addrs + mon_addrs_size - 1, - parse_rbd_opts_token, &rbd_opts); + parse_rbd_opts_token, rbd_opts); kfree(options); - - /* Record the parsed rbd options */ - - if (!IS_ERR(ceph_opts)) - rbd_dev->mapping.read_only = rbd_opts.read_only; + *opts = rbd_opts; return ceph_opts; out_mem: @@ -3131,6 +3132,7 @@ static ssize_t rbd_add(struct bus_type *bus, { struct rbd_device *rbd_dev = NULL; struct ceph_options *ceph_opts; + struct rbd_options *rbd_opts = NULL; struct ceph_osd_client *osdc; int rc = -ENOMEM; @@ -3139,7 +3141,7 @@ static ssize_t rbd_add(struct bus_type *bus, rbd_dev = kzalloc(sizeof(*rbd_dev), GFP_KERNEL); if (!rbd_dev) - goto err_out_mem; + return -ENOMEM; /* static rbd_device initialization */ spin_lock_init(&rbd_dev->lock); @@ -3148,11 +3150,12 @@ static ssize_t rbd_add(struct bus_type *bus, init_rwsem(&rbd_dev->header_rwsem); /* parse add command */ - ceph_opts = rbd_add_parse_args(rbd_dev, buf); + ceph_opts = rbd_add_parse_args(rbd_dev, buf, &rbd_opts); if (IS_ERR(ceph_opts)) { rc = PTR_ERR(ceph_opts); goto err_out_mem; } + rbd_dev->mapping.read_only = rbd_opts->read_only; rc = rbd_get_client(rbd_dev, ceph_opts); if (rc < 0) @@ -3219,6 +3222,8 @@ static ssize_t rbd_add(struct bus_type *bus, if (rc) goto err_out_bus; + kfree(rbd_opts); + /* Everything's ready. Announce the disk to the world. */ add_disk(rbd_dev->disk); @@ -3232,6 +3237,8 @@ err_out_bus: /* this will also clean up rest of rbd_dev stuff */ rbd_bus_del_dev(rbd_dev); + kfree(rbd_opts); + return rc; err_out_disk: @@ -3254,6 +3261,7 @@ err_out_args: kfree(rbd_dev->snap_name); kfree(rbd_dev->image_name); kfree(rbd_dev->pool_name); + kfree(rbd_opts); err_out_mem: kfree(rbd_dev); |