[SCSI] pmcraid: redundant check in pmcraid_check_ioctl_buffer()

struct pmcraid_ioctl_header member buffer_length is unsigned, so this
check appears redundant.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 53aefffbaead..c44e4ab4e938 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -3751,12 +3751,6 @@ static int pmcraid_check_ioctl_buffer(
                 return -EINVAL;
         }
 
-        /* buffer length can't be negetive */
-        if (hdr->buffer_length < 0) {
-                pmcraid_err("ioctl: invalid buffer length specified\n");
-                return -EINVAL;
-        }
-
         /* check for appropriate buffer access */
         if ((_IOC_DIR(cmd) & _IOC_READ) == _IOC_READ)
                 access = VERIFY_WRITE;