Commit 344e1cb0 authored Oct 18, 2022 by Heiko Carstens Committed by Greg Kroah-Hartman Nov 03, 2022

s390/futex: add missing EX_TABLE entry to __futex_atomic_op()



commit a262d3ad6a433e4080cecd0a8841104a5906355e upstream.

For some exception types the instruction address points behind the
instruction that caused the exception. Take that into account and add
the missing exception table entry.

Cc: <stable@vger.kernel.org>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 4f969d07

arch/s390/include/asm/futex.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -16,7 +16,8 @@
		"3: jl 1b\n" \
		" lhi %0,0\n" \
		"4: sacf 768\n" \
		EX_TABLE(0b,4b) EX_TABLE(2b,4b) EX_TABLE(3b,4b) \
		EX_TABLE(0b,4b) EX_TABLE(1b,4b) \
		EX_TABLE(2b,4b) EX_TABLE(3b,4b) \
		: "=d" (ret), "=&d" (oldval), "=&d" (newval), \
		"=m" (*uaddr) \
		: "0" (-EFAULT), "d" (oparg), "a" (uaddr), \