This is a note to let you know that I've just added the patch titled of: fix handling of '/' in options for of_find_node_by_path() to the 3.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: of-fix-handling-of-in-options-for-of_find_node_by_path.patch and it can be found in the queue-3.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 106937e8ccdcf0f4b95fbf0fe9abd42766cade33 Mon Sep 17 00:00:00 2001 From: Leif Lindholm <leif.lindholm@xxxxxxxxxx> Date: Fri, 6 Mar 2015 16:52:53 +0000 Subject: of: fix handling of '/' in options for of_find_node_by_path() From: Leif Lindholm <leif.lindholm@xxxxxxxxxx> commit 106937e8ccdcf0f4b95fbf0fe9abd42766cade33 upstream. Ensure proper handling of paths with appended options (after ':'), where those options may contain a '/'. Fixes: 7914a7c5651a ("of: support passing console options with stdout-path") Reported-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> Signed-off-by: Leif Lindholm <leif.lindholm@xxxxxxxxxx> Signed-off-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/of/base.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -714,16 +714,17 @@ static struct device_node *__of_find_nod const char *path) { struct device_node *child; - int len = strchrnul(path, '/') - path; - int term; + int len; + const char *end; + end = strchr(path, ':'); + if (!end) + end = strchrnul(path, '/'); + + len = end - path; if (!len) return NULL; - term = strchrnul(path, ':') - path; - if (term < len) - len = term; - __for_each_child_of_node(parent, child) { const char *name = strrchr(child->full_name, '/'); if (WARN(!name, "malformed device_node %s\n", child->full_name)) @@ -768,8 +769,12 @@ struct device_node *of_find_node_opts_by /* The path could begin with an alias */ if (*path != '/') { - char *p = strchrnul(path, '/'); - int len = separator ? separator - path : p - path; + int len; + const char *p = separator; + + if (!p) + p = strchrnul(path, '/'); + len = p - path; /* of_aliases must not be NULL */ if (!of_aliases) @@ -794,6 +799,8 @@ struct device_node *of_find_node_opts_by path++; /* Increment past '/' delimiter */ np = __of_find_node_by_path(np, path); path = strchrnul(path, '/'); + if (separator && separator < path) + break; } raw_spin_unlock_irqrestore(&devtree_lock, flags); return np; Patches currently in stable-queue which might be from leif.lindholm@xxxxxxxxxx are queue-3.19/of-handle-both-and-in-path-strings.patch queue-3.19/of-fix-handling-of-in-options-for-of_find_node_by_path.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html