linux-kernel - [ 01/42] powerpc: add a missing label in resume

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Message-Id: <20130423215205.713391123@linuxfoundation.org>
Date:	Tue, 23 Apr 2013 14:51:59 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Kevin Hao <haokexin@...il.com>,
	Tiejun Chen <tiejun.chen@...driver.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: [ 01/42] powerpc: add a missing label in resume_kernel

3.8-stable review patch.  If anyone has any objections, please let me know.

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

From: Kevin Hao <haokexin@...il.com>

commit d8b92292408831d86ff7b781e66bf79301934b99 upstream.

A label 0 was missed in the patch a9c4e541 (powerpc/kprobe: Complete
kprobe and migrate exception frame). This will cause the kernel
branch to an undetermined address if there really has a conflict when
updating the thread flags.

Signed-off-by: Kevin Hao <haokexin@...il.com>
Acked-By: Tiejun Chen <tiejun.chen@...driver.com>
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/powerpc/kernel/entry_64.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -634,7 +634,7 @@ resume_kernel:
 	/* Clear _TIF_EMULATE_STACK_STORE flag */
 	lis	r11,_TIF_EMULATE_STACK_STORE@h
 	addi	r5,r9,TI_FLAGS
-	ldarx	r4,0,r5
+0:	ldarx	r4,0,r5
 	andc	r4,r4,r11
 	stdcx.	r4,0,r5
 	bne-	0b


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