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of/fdt: Don't copy garbage after "/" in root node path 

The root node path must be internally converted to "/", or various
pieces of code looking for it that way will fail. The code to do
that however had a bug where we might incorrectly append pieces
of the original path from the fdt to the "/".

We should probably add a proper dedicated accessor for the root node
but in the meantime this patch should fix it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Benjamin Herrenschmidt 2012-10-22 11:32:30 +11:00 committed by Rob Herring
parent 2066306099
commit 509b7455ef
1 changed files with 1 additions and 0 deletions
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drivers/of/fdt.c
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@ -186,6 +186,7 @@ static unsigned long unflatten_dt_node(struct boot_param_header *blob,
*/
fpsize = 1;
allocl = 2;
l = 0;
} else {
/* account for '/' and path size minus terminal 0
* already in 'l'