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-rw-r--r--arch/arm/kernel/entry-header.S12
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 4d6ad83..9a8531e 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -121,15 +121,13 @@
.endm
#else /* CONFIG_THUMB2_KERNEL */
.macro svc_exit, rpsr
+ ldr lr, [sp, #S_SP] @ top of the stack
+ ldrd r0, r1, [sp, #S_LR] @ calling lr and pc
clrex @ clear the exclusive monitor
- ldr r0, [sp, #S_SP] @ top of the stack
- ldr r1, [sp, #S_PC] @ return address
- tst r0, #4 @ orig stack 8-byte aligned?
- stmdb r0, {r1, \rpsr} @ rfe context
+ stmdb lr!, {r0, r1, \rpsr} @ calling lr and rfe context
ldmia sp, {r0 - r12}
- ldr lr, [sp, #S_LR]
- addeq sp, sp, #S_FRAME_SIZE - 8 @ aligned
- addne sp, sp, #S_FRAME_SIZE - 4 @ not aligned
+ mov sp, lr
+ ldr lr, [sp], #4
rfeia sp!
.endm
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