linux-kernel - [15/91] [SCSI] Fix Ultrastor asm snippet

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Message-Id: <20110616001610.792770595@clark.kroah.org>
Date:	Wed, 15 Jun 2011 17:15:12 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Samuel Thibault <samuel.thibault@...-lyon.org>,
	James Bottomley <jbottomley@...allels.com>
Subject: [15/91] [SCSI] Fix Ultrastor asm snippet

2.6.32-longterm review patch.  If anyone has any objections, please let us know.

------------------

From: Samuel Thibault <samuel.thibault@...-lyon.org>

commit fad4dab5e44e10acf6b0235e469cb8e773b58e31 upstream.

Commit 1292500b replaced

"=m" (*field) : "1" (*field)

with

"=m" (*field) :

with comment "The following patch fixes it by using the '+' operator on
the (*field) operand, marking it as read-write to gcc."
'+' was actually forgotten.  This really puts it.

Signed-off-by: Samuel Thibault <samuel.thibault@...-lyon.org>
Signed-off-by: James Bottomley <jbottomley@...allels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/scsi/ultrastor.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -306,7 +306,7 @@ static inline int find_and_clear_bit_16(
 	"0: bsfw %1,%w0\n\t"
 	"btr %0,%1\n\t"
 	"jnc 0b"
-	: "=&r" (rv), "=m" (*field) :);
+	: "=&r" (rv), "+m" (*field) :);
 
   return rv;
 }


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