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Commit f6ea834e authored by Alexander Egorenkov's avatar Alexander Egorenkov Committed by Greg Kroah-Hartman
Browse files

watchdog: diag288_wdt: fix __diag288() inline assembly 



commit 32e40f9506b9e32917eb73154f93037b443124d1 upstream.

The DIAG 288 statement consumes an EBCDIC string the address of which is
passed in a register. Use a "memory" clobber to tell the compiler that
memory is accessed within the inline assembly.

Signed-off-by: default avatarAlexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 78e55b52

drivers/watchdog/diag288_wdt.c

+1 −1
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ static int __diag288(unsigned int func, unsigned int timeout, 
		"1:\n"

		EX_TABLE(0b, 1b)

		: "+d" (err) : "d"(__func), "d"(__timeout),

		  "d"(__action), "d"(__len) : "1", "cc");

		  "d"(__action), "d"(__len) : "1", "cc", "memory");

	return err;

}