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authorAsai Thambi S P <asamymuthupa@micron.com>2012-05-29 18:41:47 -0700
committerJens Axboe <axboe@kernel.dk>2012-05-31 08:36:55 +0200
commit971890f25834e1e81ccb97b9413d0c2852d49208 (patch)
tree0310974c32b562ccad9e8d83b33c9a687ee5c522 /drivers
parent2df7aa96e75c4447e8bae0fd03b8c386c36ece40 (diff)
downloadlinux-971890f25834e1e81ccb97b9413d0c2852d49208.tar.gz
mtip32xx: Change HDIO_GET_IDENTITY to return stored data
For the ioctl command HDIO_GET_IDENTITY, return the stored copy of IDENTIFY DATA instead of sending the command to the device - similar to libata. Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/mtip32xx/mtip32xx.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 4b057a7312d..73d7caa3cae 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2295,13 +2295,12 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
{
switch (cmd) {
case HDIO_GET_IDENTITY:
- if (mtip_get_identify(dd->port, (void __user *) arg) < 0) {
- dev_warn(&dd->pdev->dev,
- "Unable to read identity\n");
- return -EIO;
- }
-
+ {
+ if (copy_to_user((void __user *)arg, dd->port->identify,
+ sizeof(u16) * ATA_ID_WORDS))
+ return -EFAULT;
break;
+ }
case HDIO_DRIVE_CMD:
{
u8 drive_command[4];