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Commit 1e106aa3 authored by Dan Carpenter's avatar Dan Carpenter Committed by Thomas Gleixner
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futex: Don't enable IRQs unconditionally in put_pi_state()



The exit_pi_state_list() function calls put_pi_state() with IRQs disabled
and is not expecting that IRQs will be enabled inside the function.

Use the _irqsave() variant so that IRQs are restored to the original state
instead of being enabled unconditionally.

Fixes: 153fbd12 ("futex: Fix more put_pi_state() vs. exit_pi_state_list() races")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201106085205.GA1159983@mwanda
parent f8394f23
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