diff options
| author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2014-05-29 17:52:41 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-06-02 09:54:52 +0200 |
| commit | 9233fb10f35ab523f788e635ff07c355bb31bbdd (patch) | |
| tree | b807ad655c867cb81fac729b08d9e7d544f9c456 | |
| parent | hpsa: remove unused fields from struct ctlr_info (diff) | |
| download | linux-9233fb10f35ab523f788e635ff07c355bb31bbdd.tar.xz linux-9233fb10f35ab523f788e635ff07c355bb31bbdd.zip | |
hpsa: allow passthru ioctls to work with bidirectional commands
Treat the the data direction bits as a bit mask allowing both
READ and WRITE at the same time instead of testing for equality
to see if it's a exclusively a READ or a WRITE.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Reviewed-by: Mike Miller <michael.miller@canonical.com>
Reviewed-by: Webb Scales <webb.scales@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | drivers/scsi/hpsa.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 13c53fa410ea..59e7b19a971b 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4963,7 +4963,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) buff = kmalloc(iocommand.buf_size, GFP_KERNEL); if (buff == NULL) return -EFAULT; - if (iocommand.Request.Type.Direction == XFER_WRITE) { + if (iocommand.Request.Type.Direction & XFER_WRITE) { /* Copy the data into the buffer we created */ if (copy_from_user(buff, iocommand.buf, iocommand.buf_size)) { @@ -5026,7 +5026,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) rc = -EFAULT; goto out; } - if (iocommand.Request.Type.Direction == XFER_READ && + if ((iocommand.Request.Type.Direction & XFER_READ) && iocommand.buf_size > 0) { /* Copy the data out of the buffer we created */ if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) { @@ -5103,7 +5103,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) status = -ENOMEM; goto cleanup1; } - if (ioc->Request.Type.Direction == XFER_WRITE) { + if (ioc->Request.Type.Direction & XFER_WRITE) { if (copy_from_user(buff[sg_used], data_ptr, sz)) { status = -ENOMEM; goto cleanup1; @@ -5155,7 +5155,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) status = -EFAULT; goto cleanup0; } - if (ioc->Request.Type.Direction == XFER_READ && ioc->buf_size > 0) { + if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) { /* Copy the data out of the buffer we created */ BYTE __user *ptr = ioc->buf; for (i = 0; i < sg_used; i++) { |