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| author | Roel Kluin <roel.kluin@gmail.com> | 2009-11-17 14:53:22 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:01:49 -0600 |
| commit | 832151f45806613f203c4c0308c1566d882b971f (patch) | |
| tree | 4ac1a4fd574094b225e00791eaf23ceb12db28b0 /drivers/scsi/st.c | |
| parent | 1acf3b06f77a48b1607534408866473fb8018a65 (diff) | |
| download | linux-832151f45806613f203c4c0308c1566d882b971f.tar.gz linux-832151f45806613f203c4c0308c1566d882b971f.tar.bz2 linux-832151f45806613f203c4c0308c1566d882b971f.zip | |
[SCSI] st: fix test of value range in st_set_options()
value cannot logically be less than START and greater than BUFFERSIZE.
#define EXTENDED_SENSE_START 18
// vi include/scsi/scsi_cmnd.h +105
#define SCSI_SENSE_BUFFERSIZE 96
[akpm@linux-foundation.org: fix warning]
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Kai Makisara <kai.makisara@kolumbus.fi>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/st.c')
| -rw-r--r-- | drivers/scsi/st.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 12d58a7ed6bc..ad59abb47722 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -2280,7 +2280,8 @@ static int st_set_options(struct scsi_tape *STp, long options) } else if (code == MT_ST_SET_CLN) { value = (options & ~MT_ST_OPTIONS) & 0xff; if (value != 0 && - value < EXTENDED_SENSE_START && value >= SCSI_SENSE_BUFFERSIZE) + (value < EXTENDED_SENSE_START || + value >= SCSI_SENSE_BUFFERSIZE)) return (-EINVAL); STp->cln_mode = value; STp->cln_sense_mask = (options >> 8) & 0xff; |