tree 6343590c54c1b8c5e1d74f83e0da13d1d7e0a92f
parent a967a289f16969527a8a41e261695c639a69bee4
author Andreas Schwab <schwab@suse.de> 1557214606 +0200
committer Palmer Dabbelt <palmer@sifive.com> 1558064533 -0700
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riscv: fix locking violation in page fault handler

When a user mode process accesses an address in the vmalloc area
do_page_fault tries to unlock the mmap semaphore when it isn't locked.

Signed-off-by: Andreas Schwab <schwab@suse.de>
[Palmer: Duplicated code instead of a goto]
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>