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| author | Jens Axboe <jaxboe@fusionio.com> | 2010-06-01 12:42:12 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-06-01 12:42:12 +0200 |
| commit | b4ca761577535b2b4d153689ee97342797dfff05 (patch) | |
| tree | 29054d55508f1faa22ec32acf7c245751af03348 /drivers/of/fdt.c | |
| parent | 28f4197e5d4707311febeec8a0eb97cb5fd93c97 (diff) | |
| parent | 67a3e12b05e055c0415c556a315a3d3eb637e29e (diff) | |
| download | lwn-b4ca761577535b2b4d153689ee97342797dfff05.tar.gz lwn-b4ca761577535b2b4d153689ee97342797dfff05.zip | |
Merge branch 'master' into for-linus
Conflicts:
fs/pipe.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/of/fdt.c')
| -rw-r--r-- | drivers/of/fdt.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index dee4fb56b094..b6987bba8556 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -556,6 +556,21 @@ void __init unflatten_device_tree(void) pr_debug(" -> unflatten_device_tree()\n"); + if (!initial_boot_params) { + pr_debug("No device tree pointer\n"); + return; + } + + pr_debug("Unflattening device tree:\n"); + pr_debug("magic: %08x\n", be32_to_cpu(initial_boot_params->magic)); + pr_debug("size: %08x\n", be32_to_cpu(initial_boot_params->totalsize)); + pr_debug("version: %08x\n", be32_to_cpu(initial_boot_params->version)); + + if (be32_to_cpu(initial_boot_params->magic) != OF_DT_HEADER) { + pr_err("Invalid device tree blob header\n"); + return; + } + /* First pass, scan for size */ start = ((unsigned long)initial_boot_params) + be32_to_cpu(initial_boot_params->off_dt_struct); |