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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-03 14:08:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-03 14:08:50 -0800
commitb48a20a58651ef00a4db125324de9c986a703d5b (patch)
tree3b69f84645c92faedbd146ca370efd5461679d33
parent93bd38b31f5169a8f822de15a01abddd2fc8bcd7 (diff)
parent094cb98179f19b75acf9ff471daabf3948ce98e6 (diff)
downloadlinux-linaro-stable-b48a20a58651ef00a4db125324de9c986a703d5b.tar.gz
Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree bugfix from Grant Likely: "One more bug fix for v3.18. I debated whether or not to send you this merge request because we're at such a late rc. The bug isn't critical in that there is only one system known to be affected and the patch is easy to backport. The codepath is used by pretty much every DT based system, so there is risk a of regression (it /should/ be safe, but I've been bitten by stuff that should be safe before). I've had it in linux-next for a week and haven't received any complaints. I think it probably should just be merged right away rather than waiting for the merge window and backporting. It does fix a real bug and the code is theoretically safer after the change. I can't think of any situation where it would be dangerous to reserve the DT memory an extra time. Summary from tag: Single bugfix for boot failure seen in the wild. The memory reserve code tries to be clever about reserving the FDT, but it should just go ahead and reserve it unconditionally to avoid the problem of partial overlap described in the patch" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of/fdt: memblock_reserve /memreserve/ regions in the case of partial overlap
-rw-r--r--drivers/of/fdt.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 30e97bcc4f88..d134710de96d 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -964,8 +964,6 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
phys_addr_t size, bool nomap)
{
- if (memblock_is_region_reserved(base, size))
- return -EBUSY;
if (nomap)
return memblock_remove(base, size);
return memblock_reserve(base, size);