forked from luck/tmp_suning_uos_patched
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>
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@ -1716,9 +1716,11 @@ static int __init nvme_init(void)
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if (IS_ERR(nvme_thread))
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return PTR_ERR(nvme_thread);
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nvme_major = register_blkdev(nvme_major, "nvme");
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if (nvme_major <= 0)
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result = register_blkdev(nvme_major, "nvme");
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if (result < 0)
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goto kill_kthread;
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else if (result > 0)
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nvme_major = result;
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result = pci_register_driver(&nvme_driver);
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if (result)
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