omap: Fix access to already released memory in clk_debugfs_register_one()

I have found an access to already released memory in
clk_debugfs_register_one() function.

Signed-off-by: Marek Skuczynski <mareksk7@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index d9f8c84..4becbdd 100644 (file)
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -391,7 +391,7 @@ static struct dentry *clk_debugfs_root;
 static int clk_debugfs_register_one(struct clk *c)
 {
        int err;
-       struct dentry *d, *child;
+       struct dentry *d, *child, *child_tmp;
        struct clk *pa = c->parent;
        char s[255];
        char *p = s;
@@ -423,7 +423,7 @@ static int clk_debugfs_register_one(struct clk *c)
 
 err_out:
        d = c->dent;
-       list_for_each_entry(child, &d->d_subdirs, d_u.d_child)
+       list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child)
                debugfs_remove(child);
        debugfs_remove(c->dent);
        return err;