diff options
Diffstat (limited to 'drivers/md/bcache/super.c')
| -rw-r--r-- | drivers/md/bcache/super.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 03e1fe4de53d..bea8c4429ae8 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -16,6 +16,7 @@ #include "features.h" #include <linux/blkdev.h> +#include <linux/pagemap.h> #include <linux/debugfs.h> #include <linux/genhd.h> #include <linux/idr.h> @@ -1052,6 +1053,7 @@ static int cached_dev_status_update(void *arg) int bch_cached_dev_run(struct cached_dev *dc) { + int ret = 0; struct bcache_device *d = &dc->disk; char *buf = kmemdup_nul(dc->sb.label, SB_LABEL_SIZE, GFP_KERNEL); char *env[] = { @@ -1064,19 +1066,15 @@ int bch_cached_dev_run(struct cached_dev *dc) if (dc->io_disable) { pr_err("I/O disabled on cached dev %s\n", dc->backing_dev_name); - kfree(env[1]); - kfree(env[2]); - kfree(buf); - return -EIO; + ret = -EIO; + goto out; } if (atomic_xchg(&dc->running, 1)) { - kfree(env[1]); - kfree(env[2]); - kfree(buf); pr_info("cached dev %s is running already\n", dc->backing_dev_name); - return -EBUSY; + ret = -EBUSY; + goto out; } if (!d->c && @@ -1097,15 +1095,13 @@ int bch_cached_dev_run(struct cached_dev *dc) * only class / kset properties are persistent */ kobject_uevent_env(&disk_to_dev(d->disk)->kobj, KOBJ_CHANGE, env); - kfree(env[1]); - kfree(env[2]); - kfree(buf); if (sysfs_create_link(&d->kobj, &disk_to_dev(d->disk)->kobj, "dev") || sysfs_create_link(&disk_to_dev(d->disk)->kobj, &d->kobj, "bcache")) { pr_err("Couldn't create bcache dev <-> disk sysfs symlinks\n"); - return -ENOMEM; + ret = -ENOMEM; + goto out; } dc->status_update_thread = kthread_run(cached_dev_status_update, @@ -1114,7 +1110,11 @@ int bch_cached_dev_run(struct cached_dev *dc) pr_warn("failed to create bcache_status_update kthread, continue to run without monitoring backing device status\n"); } - return 0; +out: + kfree(env[1]); + kfree(env[2]); + kfree(buf); + return ret; } /* |