android: binder: Use octal permissions
authorHarsh Shandilya <harsh@prjkt.io>
Fri, 22 Dec 2017 14:07:02 +0000 (19:37 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 9 Jan 2018 17:00:45 +0000 (18:00 +0100)
checkpatch warns against the use of symbolic permissions,
this patch migrates all symbolic permissions in the binder
driver to octal permissions.

Test: debugfs nodes created by binder have the same unix
permissions prior to and after this patch was applied.

Signed-off-by: Harsh Shandilya <harsh@prjkt.io>
Cc: "Arve Hjønnevåg" <arve@android.com>
Cc: Todd Kjos <tkjos@android.com>
Cc: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/android/binder.c

index 7c4b97c..814bc35 100644 (file)
@@ -141,7 +141,7 @@ enum {
 };
 static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
        BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
-module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
+module_param_named(debug_mask, binder_debug_mask, uint, 0644);
 
 static char *binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
 module_param_named(devices, binder_devices_param, charp, 0444);
@@ -160,7 +160,7 @@ static int binder_set_stop_on_user_error(const char *val,
        return ret;
 }
 module_param_call(stop_on_user_error, binder_set_stop_on_user_error,
-       param_get_int, &binder_stop_on_user_error, S_IWUSR | S_IRUGO);
+       param_get_int, &binder_stop_on_user_error, 0644);
 
 #define binder_debug(mask, x...) \
        do { \
@@ -4767,7 +4767,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
                 * anyway print all contexts that a given PID has, so this
                 * is not a problem.
                 */
-               proc->debugfs_entry = debugfs_create_file(strbuf, S_IRUGO,
+               proc->debugfs_entry = debugfs_create_file(strbuf, 0444,
                        binder_debugfs_dir_entry_proc,
                        (void *)(unsigned long)proc->pid,
                        &binder_proc_fops);
@@ -5610,27 +5610,27 @@ static int __init binder_init(void)
 
        if (binder_debugfs_dir_entry_root) {
                debugfs_create_file("state",
-                                   S_IRUGO,
+                                   0444,
                                    binder_debugfs_dir_entry_root,
                                    NULL,
                                    &binder_state_fops);
                debugfs_create_file("stats",
-                                   S_IRUGO,
+                                   0444,
                                    binder_debugfs_dir_entry_root,
                                    NULL,
                                    &binder_stats_fops);
                debugfs_create_file("transactions",
-                                   S_IRUGO,
+                                   0444,
                                    binder_debugfs_dir_entry_root,
                                    NULL,
                                    &binder_transactions_fops);
                debugfs_create_file("transaction_log",
-                                   S_IRUGO,
+                                   0444,
                                    binder_debugfs_dir_entry_root,
                                    &binder_transaction_log,
                                    &binder_transaction_log_fops);
                debugfs_create_file("failed_transaction_log",
-                                   S_IRUGO,
+                                   0444,
                                    binder_debugfs_dir_entry_root,
                                    &binder_transaction_log_failed,
                                    &binder_transaction_log_fops);