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s390/lib,uaccess: fix copy_in_user_mvcos() inline asm clobber list

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General register 0 is clobbered within the inline assembly and
therefore must be listed in the clobber list.

Fixes:  d1e18efa8f ("s390/lib,uaccess: get rid of register asm")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2021-06-28 23:55:53 +02:00 committed by Vasily Gorbik
parent 85b18d7b5e
commit 07f3a35df1
1 changed files with 1 additions and 1 deletions
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arch/s390/lib/uaccess.c
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@ -224,7 +224,7 @@ static inline unsigned long copy_in_user_mvcos(void __user *to, const void __use
EX_TABLE(0b,3b)
: "+a" (size), "+a" (to), "+a" (from), "+a" (tmp1), "=a" (tmp2)
: [spec] "d" (0x810081UL)
: "cc", "memory");
: "cc", "memory", "0");
return size;
}