scsi: ufs: fix data segment length for upiu header

Change-Id: I3f1c16422c32809390c83dc4391f396b9e9b0ad6
Signed-off-by: hgchu <hg.chu@samsung.com>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3983c38cbf4f7b9a61ac07674e8bb206eeef2890..7df4c38ecdfe6050eef2bef3945677dbc2a7b6fd 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2221,6 +2221,9 @@ static void ufshcd_prepare_utp_query_req_upiu(struct ufs_hba *hba,
        ucd_req_ptr->header.dword_1 = UPIU_HEADER_DWORD(
                        0, query->request.query_func, 0, 0);
 
+       if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_READ_DESC)
+               len = 0;
+
        /* Data segment length only need for WRITE_DESC */
        if (query->request.upiu_req.opcode == UPIU_QUERY_OPCODE_WRITE_DESC)
                ucd_req_ptr->header.dword_2 =