Commit 3b1904d0 authored by Russell King's avatar Russell King Committed by Russell King

[ARM] pxa: don't rely on r2 being preserved over a function call

r2 is not guaranteed to be preserved over a function call, so relying
on it to store the link register over the call to sleep_phys_sp() is
unreliable.  Store the link register on the stack instead.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent a7da60f4
......@@ -43,11 +43,11 @@ pxa_cpu_save_cp:
pxa_cpu_save_sp:
@ preserve phys address of stack
mov r0, sp
mov r2, lr
str lr, [sp, #-4]!
bl sleep_phys_sp
ldr r1, =sleep_save_sp
str r0, [r1]
mov pc, r2
ldr pc, [sp], #4
/*
* pxa27x_cpu_suspend()
......@@ -270,5 +270,3 @@ resume_after_mmu:
mar acc0, r2, r3
#endif
ldmfd sp!, {r4 - r12, pc} @ return to caller
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