riscv: fix locking violation in page fault handler

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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>

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Andreas Schwab 2019-05-07 09:36:46 +02:00 • committed by Palmer Dabbelt

parent a967a289f1

commit 8fef9900d4

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1 changed files with 2 additions and 1 deletions

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arch/riscv/mm/fault.c

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