3.11.10.6 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Dave Jones <[email protected]> commit c1d867a54d426b45da017fbe8e585f8a3064ce8d upstream. Distribution kernels might want to build in support for /proc/device-tree for kernels that might end up running on hardware that doesn't support openfirmware. This results in an empty /proc/device-tree existing. Remove it if the OFW root node doesn't exist. This situation actually confuses grub2, resulting in install failures. grub2 sees the /proc/device-tree and picks the wrong install target cf. http://bzr.savannah.gnu.org/lh/grub/trunk/grub/annotate/4300/util/grub-install.in#L311 grub should be more robust, but still, leaving an empty proc dir seems pointless. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=818378. Signed-off-by: Dave Jones <[email protected]> Cc: Al Viro <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Josh Boyer <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- fs/proc/proc_devtree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c index 106a835..9fa2154 100644 --- a/fs/proc/proc_devtree.c +++ b/fs/proc/proc_devtree.c @@ -235,6 +235,7 @@ void __init proc_device_tree_init(void) return; root = of_find_node_by_path("/"); if (root == NULL) { + remove_proc_entry("device-tree", NULL); pr_debug("/proc/device-tree: can't find root\n"); return; } -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
