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path: root/drivers/block/paride/pf.c
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Diffstat (limited to 'drivers/block/paride/pf.c')
-rw-r--r--drivers/block/paride/pf.c50
1 files changed, 26 insertions, 24 deletions
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index e9746af29b9f..852b564e903a 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -205,6 +205,7 @@ static int pf_open(struct inode *inode, struct file *file);
205static void do_pf_request(request_queue_t * q); 205static void do_pf_request(request_queue_t * q);
206static int pf_ioctl(struct inode *inode, struct file *file, 206static int pf_ioctl(struct inode *inode, struct file *file,
207 unsigned int cmd, unsigned long arg); 207 unsigned int cmd, unsigned long arg);
208static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo);
208 209
209static int pf_release(struct inode *inode, struct file *file); 210static int pf_release(struct inode *inode, struct file *file);
210 211
@@ -266,6 +267,7 @@ static struct block_device_operations pf_fops = {
266 .open = pf_open, 267 .open = pf_open,
267 .release = pf_release, 268 .release = pf_release,
268 .ioctl = pf_ioctl, 269 .ioctl = pf_ioctl,
270 .getgeo = pf_getgeo,
269 .media_changed = pf_check_media, 271 .media_changed = pf_check_media,
270}; 272};
271 273
@@ -313,34 +315,34 @@ static int pf_open(struct inode *inode, struct file *file)
313 return 0; 315 return 0;
314} 316}
315 317
316static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) 318static int pf_getgeo(struct block_device *bdev, struct hd_geometry *geo)
317{ 319{
318 struct pf_unit *pf = inode->i_bdev->bd_disk->private_data; 320 struct pf_unit *pf = bdev->bd_disk->private_data;
319 struct hd_geometry __user *geo = (struct hd_geometry __user *) arg; 321 sector_t capacity = get_capacity(pf->disk);
320 struct hd_geometry g; 322
321 sector_t capacity;
322
323 if (cmd == CDROMEJECT) {
324 if (pf->access == 1) {
325 pf_eject(pf);
326 return 0;
327 }
328 return -EBUSY;
329 }
330 if (cmd != HDIO_GETGEO)
331 return -EINVAL;
332 capacity = get_capacity(pf->disk);
333 if (capacity < PF_FD_MAX) { 323 if (capacity < PF_FD_MAX) {
334 g.cylinders = sector_div(capacity, PF_FD_HDS * PF_FD_SPT); 324 geo->cylinders = sector_div(capacity, PF_FD_HDS * PF_FD_SPT);
335 g.heads = PF_FD_HDS; 325 geo->heads = PF_FD_HDS;
336 g.sectors = PF_FD_SPT; 326 geo->sectors = PF_FD_SPT;
337 } else { 327 } else {
338 g.cylinders = sector_div(capacity, PF_HD_HDS * PF_HD_SPT); 328 geo->cylinders = sector_div(capacity, PF_HD_HDS * PF_HD_SPT);
339 g.heads = PF_HD_HDS; 329 geo->heads = PF_HD_HDS;
340 g.sectors = PF_HD_SPT; 330 geo->sectors = PF_HD_SPT;
341 } 331 }
342 if (copy_to_user(geo, &g, sizeof(g))) 332
343 return -EFAULT; 333 return 0;
334}
335
336static int pf_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
337{
338 struct pf_unit *pf = inode->i_bdev->bd_disk->private_data;
339
340 if (cmd != CDROMEJECT)
341 return -EINVAL;
342
343 if (pf->access != 1)
344 return -EBUSY;
345 pf_eject(pf);
344 return 0; 346 return 0;
345} 347}
346 348