From: Graf Yang <graf.yang@analog.com>
Date: Tue, 18 Nov 2008 09:48:22 +0000 (+0800)
Subject: Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crash
X-Git-Tag: firefly_0821_release~16782^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4213cb64004e38b3e78424f30e1e638f8004c7a8;p=firefly-linux-kernel-4.4.55.git

Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crash

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index c13fa8da28c7..bde6dc4e2614 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -277,7 +277,7 @@ ENTRY(_bfin_return_from_exception)
 	p5.h = hi(ILAT);
 	r6 = [p5];
 	r7 = 0x20;		/* Did I just cause anther HW error? */
-	r7 = r7 & r1;
+	r6 = r7 & r6;
 	CC = R7 == R6;
 	if CC JUMP _double_fault;
 #endif