diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 594d8825db764373e2512d893d2bc13ac04ff468..7fbdf65db97dea63f645ea5814be93e959776ee5 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -825,11 +825,28 @@ static long compat_ashmem_ioctl(struct file *file, unsigned int cmd, unsigned lo } #endif +static const struct file_operations ashmem_fops = { + .owner = THIS_MODULE, + .open = ashmem_open, + .release = ashmem_release, + .read = ashmem_read, + .llseek = ashmem_llseek, + .mmap = ashmem_mmap, + .unlocked_ioctl = ashmem_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = compat_ashmem_ioctl, +#endif +}; + +static struct miscdevice ashmem_misc = { + .minor = MISC_DYNAMIC_MINOR, + .name = "ashmem", + .fops = &ashmem_fops, +}; + static int is_ashmem_file(struct file *file) { - char fname[256], *name; - name = dentry_path(file->f_dentry, fname, 256); - return strcmp(name, "/ashmem") ? 0 : 1; + return (file->f_op == &ashmem_fops); } int get_ashmem_file(int fd, struct file **filp, struct file **vm_file, @@ -878,25 +895,6 @@ void put_ashmem_file(struct file *file) } EXPORT_SYMBOL(put_ashmem_file); -static const struct file_operations ashmem_fops = { - .owner = THIS_MODULE, - .open = ashmem_open, - .release = ashmem_release, - .read = ashmem_read, - .llseek = ashmem_llseek, - .mmap = ashmem_mmap, - .unlocked_ioctl = ashmem_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = compat_ashmem_ioctl, -#endif -}; - -static struct miscdevice ashmem_misc = { - .minor = MISC_DYNAMIC_MINOR, - .name = "ashmem", - .fops = &ashmem_fops, -}; - static int __init ashmem_init(void) { int ret;