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| author | Grant Likely <grant.likely@secretlab.ca> | 2010-06-08 07:48:25 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-07-18 22:39:36 -0600 |
| commit | 60d599133011eaca6073696f6a86cd516854d547 (patch) | |
| tree | 224ab8eea128c70db90320372f7dde0d79b95d2f /drivers/of | |
| parent | f1d4c3a76981addcd7669f404f75041435a04e6a (diff) | |
| download | linux-3.10-60d599133011eaca6073696f6a86cd516854d547.tar.gz linux-3.10-60d599133011eaca6073696f6a86cd516854d547.tar.bz2 linux-3.10-60d599133011eaca6073696f6a86cd516854d547.zip | |
of/flattree: Fix crash when device tree absent
This patch fixes the condition where device tree support is compiled
in, but no device tree was proved by firmware. It makes
of_platform_bus_probe() explicitly check for a NULL device tree
pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/platform.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 5be008035b9..c52a798684a 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -617,6 +617,8 @@ int of_platform_bus_probe(struct device_node *root, root = of_find_node_by_path("/"); else of_node_get(root); + if (root == NULL) + return -EINVAL; pr_debug("of_platform_bus_probe()\n"); pr_debug(" starting at: %s\n", root->full_name); |