stdio: Tidy up the coding style

[platform/kernel/u-boot.git] / common / stdio.c

diff --git a/common/stdio.c b/common/stdio.c
index d67ea60..84c36a7 100644 (file)
--- a/common/stdio.c
+++ b/common/stdio.c
@@ -191,16 +191,15 @@ struct stdio_dev *stdio_get_by_name(const char *name)
        return NULL;
 }
 
-struct stdio_dev* stdio_clone(struct stdio_dev *dev)
+struct stdio_dev *stdio_clone(struct stdio_dev *dev)
 {
        struct stdio_dev *_dev;
 
-       if(!dev)
+       if (!dev)
                return NULL;
 
        _dev = calloc(1, sizeof(struct stdio_dev));
-
-       if(!_dev)
+       if (!_dev)
                return NULL;
 
        memcpy(_dev, dev, sizeof(struct stdio_dev));
@@ -213,7 +212,7 @@ int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp)
        struct stdio_dev *_dev;
 
        _dev = stdio_clone(dev);
-       if(!_dev)
+       if (!_dev)
                return -ENODEV;
        list_add_tail(&_dev->list, &devs.list);
        if (devp)
@@ -227,41 +226,38 @@ int stdio_register(struct stdio_dev *dev)
        return stdio_register_dev(dev, NULL);
 }
 
-/* deregister the device "devname".
- * returns 0 if success, -1 if device is assigned and 1 if devname not found
- */
 int stdio_deregister_dev(struct stdio_dev *dev, int force)
 {
-       int l;
        struct list_head *pos;
        char temp_names[3][16];
+       int i;
 
        /* get stdio devices (ListRemoveItem changes the dev list) */
-       for (l=0 ; l< MAX_FILES; l++) {
-               if (stdio_devices[l] == dev) {
+       for (i = 0 ; i < MAX_FILES; i++) {
+               if (stdio_devices[i] == dev) {
                        if (force) {
-                               strcpy(temp_names[l], "nulldev");
+                               strcpy(temp_names[i], "nulldev");
                                continue;
                        }
                        /* Device is assigned -> report error */
-                       return -1;
+                       return -EBUSY;
                }
-               memcpy (&temp_names[l][0],
-                       stdio_devices[l]->name,
-                       sizeof(temp_names[l]));
+               memcpy(&temp_names[i][0], stdio_devices[i]->name,
+                      sizeof(temp_names[i]));
        }
 
        list_del(&dev->list);
        free(dev);
 
-       /* reassign Device list */
+       /* reassign device list */
        list_for_each(pos, &devs.list) {
                dev = list_entry(pos, struct stdio_dev, list);
-               for (l=0 ; l< MAX_FILES; l++) {
-                       if(strcmp(dev->name, temp_names[l]) == 0)
-                               stdio_devices[l] = dev;
+               for (i = 0 ; i < MAX_FILES; i++) {
+                       if (strcmp(dev->name, temp_names[i]) == 0)
+                               stdio_devices[i] = dev;
                }
        }
+
        return 0;
 }
 
@@ -270,7 +266,6 @@ int stdio_deregister(const char *devname, int force)
        struct stdio_dev *dev;
 
        dev = stdio_get_by_name(devname);
-
        if (!dev) /* device not found */
                return -ENODEV;