1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 9bc913b92d13..26b543bc4f53 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2634,13 +2634,16 @@ static void sd_read_write_same(struct scsi_disk *sdkp, unsigned char *buffer)
         }
 
         if (scsi_report_opcode(sdev, buffer, SD_BUF_SIZE, INQUIRY) < 0) {
+                /* too large values might cause issues with arcmsr */
+                int vpd_buf_len = 64;
+
                 sdev->no_report_opcodes = 1;
 
                 /* Disable WRITE SAME if REPORT SUPPORTED OPERATION
                  * CODES is unsupported and the device has an ATA
                  * Information VPD page (SAT).
                  */
-                if (!scsi_get_vpd_page(sdev, 0x89, buffer, SD_BUF_SIZE))
+                if (!scsi_get_vpd_page(sdev, 0x89, buffer, vpd_buf_len))
                         sdev->no_write_same = 1;
         }