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| author |   Andre Noll <maan@systemlinux.org> | 2009-06-16 16:47:21 +1000 |
|---|---|---|
| committer |   NeilBrown <neilb@suse.de> | 2009-06-16 16:47:21 +1000 |
| commit | 5568a6035d9fca2cd8f1ef7005e215eae4e65fab (patch) | |
| tree | d4433e2449d51e38b841660b8b1017822828044c /drivers/md/raid0.c | |
| parent | md: raid0: Remove hash spacing and sector shift. (diff) | |
| download | linux-dev-5568a6035d9fca2cd8f1ef7005e215eae4e65fab.tar.xz linux-dev-5568a6035d9fca2cd8f1ef7005e215eae4e65fab.zip | |
md: raid0: Make raid0_run() return a proper error code.
Currently raid0_run() always returns -ENOMEM on errors. This is
incorrect as running the array might fail for other reasons, for
example because not all component devices were available.
This patch changes create_strip_zones() so that it returns a proper
error code (either -ENOMEM or -EINVAL) rather than 1 on errors and
makes raid0_run(), its single caller, return that value instead
of -ENOMEM.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid0.c')
| -rw-r--r-- | drivers/md/raid0.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index edffc4940b49..e5648b660e75 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -105,12 +105,12 @@ static int create_strip_zones (mddev_t *mddev) conf->strip_zone = kzalloc(sizeof(struct strip_zone)* conf->nr_strip_zones, GFP_KERNEL); if (!conf->strip_zone) - return 1; + return -ENOMEM; conf->devlist = kzalloc(sizeof(mdk_rdev_t*)* conf->nr_strip_zones*mddev->raid_disks, GFP_KERNEL); if (!conf->devlist) - return 1; + return -ENOMEM; /* The first zone must contain all devices, so here we check that * there is a proper alignment of slots to devices and find them all @@ -207,8 +207,8 @@ static int create_strip_zones (mddev_t *mddev) printk(KERN_INFO "raid0: done.\n"); return 0; - abort: - return 1; +abort: + return -EINVAL; } /** @@ -254,6 +254,7 @@ static sector_t raid0_size(mddev_t *mddev, sector_t sectors, int raid_disks) static int raid0_run(mddev_t *mddev) { raid0_conf_t *conf; + int ret; if (mddev->chunk_size == 0) { printk(KERN_ERR "md/raid0: non-zero chunk size required.\n"); @@ -269,12 +270,13 @@ static int raid0_run(mddev_t *mddev) conf = kmalloc(sizeof (raid0_conf_t), GFP_KERNEL); if (!conf) - goto out; + return -ENOMEM; mddev->private = (void *)conf; conf->strip_zone = NULL; conf->devlist = NULL; - if (create_strip_zones (mddev)) + ret = create_strip_zones(mddev); + if (ret < 0) goto out_free_conf; /* calculate array device size */ @@ -306,8 +308,7 @@ out_free_conf: kfree(conf->devlist); kfree(conf); mddev->private = NULL; -out: - return -ENOMEM; + return ret; } static int raid0_stop (mddev_t *mddev) |