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-rw-r--r--drivers/mtd/mtd_blkdevs.c25
1 files changed, 9 insertions, 16 deletions
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 339cb1218eaa..7f3ff500b68e 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -194,6 +194,14 @@ static int blktrans_release(struct inode *i, struct file *f)
194 return ret; 194 return ret;
195} 195}
196 196
197static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo)
198{
199 struct mtd_blktrans_dev *dev = bdev->bd_disk->private_data;
200
201 if (dev->tr->getgeo)
202 return dev->tr->getgeo(dev, geo);
203 return -ENOTTY;
204}
197 205
198static int blktrans_ioctl(struct inode *inode, struct file *file, 206static int blktrans_ioctl(struct inode *inode, struct file *file,
199 unsigned int cmd, unsigned long arg) 207 unsigned int cmd, unsigned long arg)
@@ -207,22 +215,6 @@ static int blktrans_ioctl(struct inode *inode, struct file *file,
207 return tr->flush(dev); 215 return tr->flush(dev);
208 /* The core code did the work, we had nothing to do. */ 216 /* The core code did the work, we had nothing to do. */
209 return 0; 217 return 0;
210
211 case HDIO_GETGEO:
212 if (tr->getgeo) {
213 struct hd_geometry g;
214 int ret;
215
216 memset(&g, 0, sizeof(g));
217 ret = tr->getgeo(dev, &g);
218 if (ret)
219 return ret;
220
221 g.start = get_start_sect(inode->i_bdev);
222 if (copy_to_user((void __user *)arg, &g, sizeof(g)))
223 return -EFAULT;
224 return 0;
225 } /* else */
226 default: 218 default:
227 return -ENOTTY; 219 return -ENOTTY;
228 } 220 }
@@ -233,6 +225,7 @@ struct block_device_operations mtd_blktrans_ops = {
233 .open = blktrans_open, 225 .open = blktrans_open,
234 .release = blktrans_release, 226 .release = blktrans_release,
235 .ioctl = blktrans_ioctl, 227 .ioctl = blktrans_ioctl,
228 .getgeo = blktrans_getgeo,
236}; 229};
237 230
238int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) 231int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)