mfd: ab3100: world-writable debugfs *_priv files

commit f8a0697722d12a201588225999cfc8bfcbc82781 upstream.

Don't allow everybody to change device hardware registers.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index 613481028272f114c754a4a652987fce90452cae..78e3e85dc62c9399588f8060ae8fa4ab9b1c5db2 100644 (file)
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -591,7 +591,7 @@ static void ab3100_setup_debugfs(struct ab3100 *ab3100)
        ab3100_get_priv.ab3100 = ab3100;
        ab3100_get_priv.mode = false;
        ab3100_get_reg_file = debugfs_create_file("get_reg",
-                               S_IWUGO, ab3100_dir, &ab3100_get_priv,
+                               S_IWUSR, ab3100_dir, &ab3100_get_priv,
                                &ab3100_get_set_reg_fops);
        if (!ab3100_get_reg_file) {
                err = -ENOMEM;
@@ -601,7 +601,7 @@ static void ab3100_setup_debugfs(struct ab3100 *ab3100)
        ab3100_set_priv.ab3100 = ab3100;
        ab3100_set_priv.mode = true;
        ab3100_set_reg_file = debugfs_create_file("set_reg",
-                               S_IWUGO, ab3100_dir, &ab3100_set_priv,
+                               S_IWUSR, ab3100_dir, &ab3100_set_priv,
                                &ab3100_get_set_reg_fops);
        if (!ab3100_set_reg_file) {
                err = -ENOMEM;