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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-09-15 15:45:41 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-09-15 15:45:41 +0200
commitaa15f47714e0e98ae78c1516c2fc989fd375fe3b (patch)
tree40029561aee1f6e2a8f6cd49fab59416ba911c2c /arch/arm/mach-omap2/sleep44xx.S
parent[media] rtl2832: implement .read_ber() (diff)
parentLinux 3.6-rc5 (diff)
downloadlinux-aa15f47714e0e98ae78c1516c2fc989fd375fe3b.tar.xz
linux-aa15f47714e0e98ae78c1516c2fc989fd375fe3b.zip
Merge tag 'v3.6-rc5' into staging/for_v3.7
Linux 3.6-rc5 * tag 'v3.6-rc5': (334 commits) Linux 3.6-rc5 HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured Remove user-triggerable BUG from mpol_to_str xen/pciback: Fix proper FLR steps. uml: fix compile error in deliver_alarm() dj: memory scribble in logi_dj Fix order of arguments to compat_put_time[spec|val] xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory. powerpc: Don't use __put_user() in patch_instruction powerpc: Make sure IPI handlers see data written by IPI senders powerpc: Restore correct DSCR in context switch powerpc: Fix DSCR inheritance in copy_thread() powerpc: Keep thread.dscr and thread.dscr_inherit in sync powerpc: Update DSCR on all CPUs when writing sysfs dscr_default powerpc/powernv: Always go into nap mode when CPU is offline powerpc: Give hypervisor decrementer interrupts their own handler powerpc/vphn: Fix arch_update_cpu_topology() return value ARM: gemini: fix the gemini build ...
Diffstat (limited to 'arch/arm/mach-omap2/sleep44xx.S')
-rw-r--r--arch/arm/mach-omap2/sleep44xx.S8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
index 9f6b83d1b193..91e71d8f46f0 100644
--- a/arch/arm/mach-omap2/sleep44xx.S
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -56,9 +56,13 @@ ppa_por_params:
* The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET.
* It returns to the caller for CPU INACTIVE and ON power states or in case
* CPU failed to transition to targeted OFF/DORMANT state.
+ *
+ * omap4_finish_suspend() calls v7_flush_dcache_all() which doesn't save
+ * stack frame and it expects the caller to take care of it. Hence the entire
+ * stack frame is saved to avoid possible stack corruption.
*/
ENTRY(omap4_finish_suspend)
- stmfd sp!, {lr}
+ stmfd sp!, {r4-r12, lr}
cmp r0, #0x0
beq do_WFI @ No lowpower state, jump to WFI
@@ -226,7 +230,7 @@ scu_gp_clear:
skip_scu_gp_clear:
isb
dsb
- ldmfd sp!, {pc}
+ ldmfd sp!, {r4-r12, pc}
ENDPROC(omap4_finish_suspend)
/*