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| author | Keith Busch <keith.busch@intel.com> | 2012-07-25 16:05:18 -0600 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2012-07-26 12:23:38 -0400 |
| commit | 5c42ea1643a630060f9e71e06d3933d244970967 (patch) | |
| tree | 45a0acae315367d8807ccf0a128dcfd3138b430d /drivers/block/nvme.c | |
| parent | e9ef46369f5107e634a93b7fc4e62a1f53343197 (diff) | |
| download | lwn-5c42ea1643a630060f9e71e06d3933d244970967.tar.gz lwn-5c42ea1643a630060f9e71e06d3933d244970967.zip | |
NVMe: Fix nvme module init when nvme_major is set
register_blkdev returns 0 when given a valid major number.
Reported-by:Ross Zwisler <ross.zwisler@intel.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'drivers/block/nvme.c')
| -rw-r--r-- | drivers/block/nvme.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c index 38b9c73f6706..46e33eec6298 100644 --- a/drivers/block/nvme.c +++ b/drivers/block/nvme.c @@ -1716,9 +1716,11 @@ static int __init nvme_init(void) if (IS_ERR(nvme_thread)) return PTR_ERR(nvme_thread); - nvme_major = register_blkdev(nvme_major, "nvme"); - if (nvme_major <= 0) + result = register_blkdev(nvme_major, "nvme"); + if (result < 0) goto kill_kthread; + else if (result > 0) + nvme_major = result; result = pci_register_driver(&nvme_driver); if (result) |