scsi: qla2xxx: Fix an endian bug in fcpcmd_is_corrupted()

BugLink: https://bugs.launchpad.net/bugs/1836426
[ Upstream commit cbe3fd39d223f14b1c60c80fe9347a3dd08c2edb ]

We should first do the le16_to_cpu endian conversion and then apply the
FCP_CMD_LENGTH_MASK mask.

Fixes: 5f35509db179 ("qla2xxx: Terminate exchange if corrupted")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Quinn Tran <Quinn.Tran@cavium.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index aba58d3848a6e7c99c264261f2680f425d7e10e6..511a31b359c7c5f29ade6fa21d00f716100969b6 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -374,8 +374,8 @@ struct atio_from_isp {
 static inline int fcpcmd_is_corrupted(struct atio *atio)
 {
        if (atio->entry_type == ATIO_TYPE7 &&
-           (le16_to_cpu(atio->attr_n_length & FCP_CMD_LENGTH_MASK) <
-           FCP_CMD_LENGTH_MIN))
+           ((le16_to_cpu(atio->attr_n_length) & FCP_CMD_LENGTH_MASK) <
+            FCP_CMD_LENGTH_MIN))
                return 1;
        else
                return 0;