From: Roel Kluin <roel.kluin@xxxxxxxxx>
struct pmcraid_ioctl_header member buffer_length is unsigned, so this
check appears redundant.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
Acked-by: Anil Ravindranath <anil_ravindranath@xxxxxxxxxxxxxx>
Cc: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/pmcraid.c | 6 ------
1 file changed, 6 deletions(-)
diff -puN drivers/scsi/pmcraid.c~scsi-pmcraid-redundant-check-in-pmcraid_check_ioctl_buffer drivers/scsi/pmcraid.c
--- a/drivers/scsi/pmcraid.c~scsi-pmcraid-redundant-check-in-pmcraid_check_ioctl_buffer
+++ a/drivers/scsi/pmcraid.c
@@ -3752,12 +3752,6 @@ 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;
_
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