powerpc: add a missing label in resume_kernel

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@gmail.com>
Cc: stable@vger.kernel.org
Acked-By: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 3acb1a076d3f48e73e2a7f7b21aa6d9e4eb873fa..04d69c4a5ac2d6326839d8bcf23342ff509926ce 100644 (file)
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -657,7 +657,7 @@ 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