[ARM] 3524/1: ARM EABI: more 64-bit aligned stack fixes

Patch from Nicolas Pitre

Assembly code that calls C code must ensure the C code sees a 64-bit
aligned stack pointer.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 4 deletions

diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S
index 3bdc8c6949c5..16153c86c3f8 100644
--- a/arch/arm/lib/backtrace.S
+++ b/arch/arm/lib/backtrace.S
@@ -122,7 +122,7 @@ ENTRY(c_backtrace)
 #define reg   r5
 #define stack r6
 
-.Ldumpstm:      stmfd   sp!, {instr, reg, stack, r7, lr}
+.Ldumpstm:      stmfd   sp!, {instr, reg, stack, r7, r8, lr}
                 mov     stack, r0
                 mov     instr, r1
                 mov     reg, #9
@@ -145,7 +145,7 @@ ENTRY(c_backtrace)
                 adrne   r0, .Lcr
                 blne    printk
                 mov     r0, stack
-                LOADREGS(fd, sp!, {instr, reg, stack, r7, pc})
+                LOADREGS(fd, sp!, {instr, reg, stack, r7, r8, pc})
 
 .Lfp:           .asciz  " r%d = %08X%c"
 .Lcr:           .asciz  "\n"
diff --git a/arch/arm/lib/div64.S b/arch/arm/lib/div64.S
index ec9a1cd6176f..58eef6607629 100644
--- a/arch/arm/lib/div64.S
+++ b/arch/arm/lib/div64.S
@@ -189,12 +189,12 @@ ENTRY(__do_div64)
         moveq   pc, lr
 
         @ Division by 0:
-        str     lr, [sp, #-4]!
+        str     lr, [sp, #-8]!
         bl      __div0
 
         @ as wrong as it could be...
         mov     yl, #0
         mov     yh, #0
         mov     xh, #0
-        ldr     pc, [sp], #4
+        ldr     pc, [sp], #8