add_disk() make my driver's initialisation, thus kernel stall.

[Valdis.Kletnieks at vt.edu]

On Sun, 20 Mar 2016 16:38:12 +0800, å¼ äº‘ said:

> My memory disk block driver was compiled successfully.
> But when I insmod my module, initialisation stall at add_disk  in =
> setup_dev function.

> int major = 0;

Are you positive that this is both safe and usable?
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