* [PATCH 03/11] mtip32xx: Change HDIO_GET_IDENTITY to return stored data
@ 2012-05-30 1:41 Asai Thambi S P
0 siblings, 0 replies; only message in thread
From: Asai Thambi S P @ 2012-05-30 1:41 UTC (permalink / raw)
To: Jens Axboe, linux-kernel@vger.kernel.org, Sam Bradshaw
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>
---
drivers/block/mtip32xx/mtip32xx.c | 11 +++++------
1 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index bbbdaf9..8b7f82b 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];
--
1.7.1
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