diff options
| author | David Milburn <dmilburn@redhat.com> | 2012-09-12 14:06:12 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-09-12 22:21:13 +0200 |
| commit | 97651ea687d3b6a214c32b49f79523db709fba18 (patch) | |
| tree | afa8a69225ba8fd88b4aabe245da6bcb84821868 /drivers/block/mtip32xx | |
| parent | ac64e6572d3906c3874175cf5345a37dc7f983f5 (diff) | |
mtip32xx: fix user_buffer check in exec_drive_command
Current user_buffer check is incorrect and causes hdparm to fail
# hdparm -I /dev/rssda
HDIO_DRIVE_CMD(identify) failed: Input/output error
/dev/rssda:
Patching linux-3.6-rc5 hdparm works as expected
# hdparm -I /dev/rssda
/dev/rssda:
ATA device, with non-removable media
Model Number: DELL_P320h-MTFDGAL350SAH
Serial Number: 00000000121302025F01
Firmware Revision: B1442808
<snip>
Reported-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/mtip32xx')
| -rw-r--r-- | drivers/block/mtip32xx/mtip32xx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index e6519e2c993..f946d31d691 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -1904,7 +1904,7 @@ static int exec_drive_command(struct mtip_port *port, u8 *command, int rv = 0, xfer_sz = command[3]; if (xfer_sz) { - if (user_buffer) + if (!user_buffer) return -EFAULT; buf = dmam_alloc_coherent(&port->dd->pdev->dev, |