From 832151f45806613f203c4c0308c1566d882b971f Mon Sep 17 00:00:00 2001 From: Roel Kluin Date: Tue, 17 Nov 2009 14:53:22 -0800 Subject: [PATCH] [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 Signed-off-by: Andrew Morton Acked-by: Kai Makisara Signed-off-by: James Bottomley --- drivers/scsi/st.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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; -- 2.20.1