memstick: don't allocate unused major for ms_block
When alloc_disk(0) is used the ->major number is completely ignored. All devices are allocated with a major of BLOCK_EXT_MAJOR. So remove registration and deregistration of 'major'. Link: http://lkml.kernel.org/r/20160602064318.4403.49955.stgit@noble Signed-off-by: NeilBrown <neilb@suse.com> Cc: Keith Busch <keith.busch@intel.com> Cc: Jens Axboe <axboe@fb.com> Cc: Maxim Levitsky <maximlevitsky@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 2 additions and 15 deletions
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@ -2338,23 +2338,11 @@ static struct memstick_driver msb_driver = {
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.resume = msb_resume
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};
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static int major;
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static int __init msb_init(void)
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{
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int rc = register_blkdev(0, DRIVER_NAME);
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if (rc < 0) {
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pr_err("failed to register major (error %d)\n", rc);
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return rc;
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}
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major = rc;
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rc = memstick_register_driver(&msb_driver);
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if (rc) {
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unregister_blkdev(major, DRIVER_NAME);
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int rc = memstick_register_driver(&msb_driver);
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if (rc)
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pr_err("failed to register memstick driver (error %d)\n", rc);
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}
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return rc;
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}
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@ -2362,7 +2350,6 @@ static int __init msb_init(void)
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static void __exit msb_exit(void)
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{
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memstick_unregister_driver(&msb_driver);
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unregister_blkdev(major, DRIVER_NAME);
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idr_destroy(&msb_disk_idr);
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}
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