X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Flibata-scsi.c;h=794fb559efb080aa9986df125cd3730ff48ee5ae;hb=5028770a42e7bc4d15791a44c28f0ad539323807;hp=416ba67ba9ee37b1fa0b7cad9ca0bc431e973017;hpb=d6d78f63cea62851806bf6ac40c6f53349de442b;p=linux-2.6

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 416ba67ba9..794fb559ef 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -947,7 +947,7 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
 }
 
 /**
- *	ata_scsiop_noop -
+ *	ata_scsiop_noop - Command handler that simply returns success.
  *	@args: device IDENTIFY data / SCSI command of interest.
  *	@rbuf: Response buffer, to which simulated SCSI cmd output is sent.
  *	@buflen: Response buffer length.
@@ -1176,8 +1176,12 @@ unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
 		n_sectors = ata_id_u32(args->id, 60);
 	n_sectors--;		/* ATA TotalUserSectors - 1 */
 
-	tmp = n_sectors;	/* note: truncates, if lba48 */
 	if (args->cmd->cmnd[0] == READ_CAPACITY) {
+		if( n_sectors >= 0xffffffffULL )
+			tmp = 0xffffffff ;  /* Return max count on overflow */
+		else
+			tmp = n_sectors ;
+
 		/* sector count, 32-bit */
 		rbuf[0] = tmp >> (8 * 3);
 		rbuf[1] = tmp >> (8 * 2);
@@ -1191,10 +1195,12 @@ unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
 
 	} else {
 		/* sector count, 64-bit */
-		rbuf[2] = n_sectors >> (8 * 7);
-		rbuf[3] = n_sectors >> (8 * 6);
-		rbuf[4] = n_sectors >> (8 * 5);
-		rbuf[5] = n_sectors >> (8 * 4);
+		tmp = n_sectors >> (8 * 4);
+		rbuf[2] = tmp >> (8 * 3);
+		rbuf[3] = tmp >> (8 * 2);
+		rbuf[4] = tmp >> (8 * 1);
+		rbuf[5] = tmp;
+		tmp = n_sectors;
 		rbuf[6] = tmp >> (8 * 3);
 		rbuf[7] = tmp >> (8 * 2);
 		rbuf[8] = tmp >> (8 * 1);