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authorJason Gunthorpe <jgunthorpe@obsidianresearch.com>2010-03-27 07:09:56 +0300
committerGrant Likely <grant.likely@secretlab.ca>2010-03-27 07:09:56 +0300
commit7f809e1f8e2f46c486bfe529579a16a28daacd62 (patch)
tree3fbfbddbb6e219f7f5a511a8d239f04c8b6aa4c3 /drivers/of
parent220bf991b0366cc50a94feede3d7341fa5710ee4 (diff)
downloadlinux-7f809e1f8e2f46c486bfe529579a16a28daacd62.tar.xz
of/flattree: Fix unhandled OF_DT_NOP tag when unflattening the device tree
NOPs within the property section are skipped, but NOPs between OF_DT_END_NODE and OF_DT_BEGIN_NODE were not. My firmware NOPs out entire nodes depending on various environment parameters. of_scan_flat_dt already handles NOP more generally. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/fdt.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 406757a9d7ea..dee4fb56b094 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -376,8 +376,11 @@ unsigned long __init unflatten_dt_node(unsigned long mem,
if (!np->type)
np->type = "<NULL>";
}
- while (tag == OF_DT_BEGIN_NODE) {
- mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
+ while (tag == OF_DT_BEGIN_NODE || tag == OF_DT_NOP) {
+ if (tag == OF_DT_NOP)
+ *p += 4;
+ else
+ mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
tag = be32_to_cpup((__be32 *)(*p));
}
if (tag != OF_DT_END_NODE) {