openwrt/target/linux/ipq806x/patches/0054-of-only-scan-for-reserved-mem-when-fdt-present.patch
Luka Perkov 02629d8f87 kernel: update 3.14 to 3.14.18
Targets were build tested and patches are refreshed.

Signed-off-by: Luka Perkov <luka@openwrt.org>

SVN-Revision: 42463
2014-09-10 21:40:19 +00:00

31 lines
1018 B
Diff

From 884ab569aec3a0847702dff0dad133bfb67e234c Mon Sep 17 00:00:00 2001
From: Josh Cartwright <joshc@codeaurora.org>
Date: Thu, 13 Mar 2014 16:36:36 -0500
Subject: [PATCH 054/182] of: only scan for reserved mem when fdt present
When the reserved memory patches hit -next, several legacy (non-DT) boot
failures were detected and bisected down to that commit. There needs to
be some sanity checking whether a DT is even present before parsing the
reserved ranges.
Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
drivers/of/fdt.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -557,6 +557,9 @@ static int __init __fdt_scan_reserved_me
*/
void __init early_init_fdt_scan_reserved_mem(void)
{
+ if (!initial_boot_params)
+ return;
+
of_scan_flat_dt(__fdt_scan_reserved_mem, NULL);
fdt_init_reserved_mem();
}