diff options
Diffstat (limited to 'fs/char_dev.c')
| -rw-r--r-- | fs/char_dev.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/char_dev.c b/fs/char_dev.c index 5c36345c9bf..4e1b849f912 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -146,12 +146,10 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor, int ret = 0; int i; - cd = kmalloc(sizeof(struct char_device_struct), GFP_KERNEL); + cd = kzalloc(sizeof(struct char_device_struct), GFP_KERNEL); if (cd == NULL) return ERR_PTR(-ENOMEM); - memset(cd, 0, sizeof(struct char_device_struct)); - mutex_lock(&chrdevs_lock); /* temporary */ @@ -252,7 +250,7 @@ int alloc_chrdev_region(dev_t *dev, unsigned baseminor, unsigned count, } int register_chrdev(unsigned int major, const char *name, - struct file_operations *fops) + const struct file_operations *fops) { struct char_device_struct *cd; struct cdev *cdev; @@ -408,7 +406,7 @@ static void cdev_purge(struct cdev *cdev) * is contain the open that then fills in the correct operations * depending on the special file... */ -struct file_operations def_chr_fops = { +const struct file_operations def_chr_fops = { .open = chrdev_open, }; @@ -466,9 +464,8 @@ static struct kobj_type ktype_cdev_dynamic = { struct cdev *cdev_alloc(void) { - struct cdev *p = kmalloc(sizeof(struct cdev), GFP_KERNEL); + struct cdev *p = kzalloc(sizeof(struct cdev), GFP_KERNEL); if (p) { - memset(p, 0, sizeof(struct cdev)); p->kobj.ktype = &ktype_cdev_dynamic; INIT_LIST_HEAD(&p->list); kobject_init(&p->kobj); @@ -476,7 +473,7 @@ struct cdev *cdev_alloc(void) return p; } -void cdev_init(struct cdev *cdev, struct file_operations *fops) +void cdev_init(struct cdev *cdev, const struct file_operations *fops) { memset(cdev, 0, sizeof *cdev); INIT_LIST_HEAD(&cdev->list); |