From 5568a6035d9fca2cd8f1ef7005e215eae4e65fab Mon Sep 17 00:00:00 2001 From: Andre Noll Date: Tue, 16 Jun 2009 16:47:21 +1000 Subject: [PATCH] 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 Signed-off-by: NeilBrown --- drivers/md/raid0.c | 17 +++++++++-------- 1 file 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) -- 2.39.2