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printk changes for 6.8

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Merge tag 'printk-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk fix from Petr Mladek:

 - Prevent refcount warning from code releasing a fwnode

* tag 'printk-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  lib/vsprintf: Fix %pfwf when current node refcount == 0
This commit is contained in:
Linus Torvalds 2023-12-22 13:41:29 -08:00
commit c0f65a7c11
1 changed files with 8 additions and 3 deletions
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11
lib/vsprintf.c
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@ -2111,15 +2111,20 @@ char *fwnode_full_name_string(struct fwnode_handle *fwnode, char *buf,
/* Loop starting from the root node to the current node. */
for (depth = fwnode_count_parents(fwnode); depth >= 0; depth--) {
struct fwnode_handle *__fwnode =
fwnode_get_nth_parent(fwnode, depth);
/*
* Only get a reference for other nodes (i.e. parent nodes).
* fwnode refcount may be 0 here.
*/
struct fwnode_handle *__fwnode = depth ?
fwnode_get_nth_parent(fwnode, depth) : fwnode;
buf = string(buf, end, fwnode_get_name_prefix(__fwnode),
default_str_spec);
buf = string(buf, end, fwnode_get_name(__fwnode),
default_str_spec);
fwnode_handle_put(__fwnode);
if (depth)
fwnode_handle_put(__fwnode);
}
return buf;