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authorHeiko Carstens <hca@linux.ibm.com>2022-10-18 13:44:11 +0200
committerVasily Gorbik <gor@linux.ibm.com>2022-10-26 14:47:31 +0200
commita262d3ad6a433e4080cecd0a8841104a5906355e (patch)
treeb05881ac954413d485fbb92e9208dbef3bc0df1d
parents390/uaccess: add missing EX_TABLE entries to __clear_user() (diff)
downloadlinux-dev-a262d3ad6a433e4080cecd0a8841104a5906355e.tar.xz
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s390/futex: add missing EX_TABLE entry to __futex_atomic_op()
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>
-rw-r--r--arch/s390/include/asm/futex.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index e08c882dccaa..eaeaeb3ff0be 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -17,7 +17,8 @@
"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), \