Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-13 00:29:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

of/flattree: Fix crash when device tree absent

Browse Source 
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>
This commit is contained in:
Grant Likely 2010-06-08 07:48:25 -06:00
parent f1d4c3a769
commit 60d5991330
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/of/platform.c
View File

@ -617,6 +617,8 @@ int of_platform_bus_probe(struct device_node *root,
root = of_find_node_by_path("/"); root = of_find_node_by_path("/");
else else
of_node_get(root); of_node_get(root);
if (root == NULL)
return -EINVAL;
pr_debug("of_platform_bus_probe()\n"); pr_debug("of_platform_bus_probe()\n");
pr_debug(" starting at: %s\n", root->full_name); pr_debug(" starting at: %s\n", root->full_name);