[patch -next] fsl/fman: fix the pause_time test

[Dan Carpenter]

pause_time is unsigned so it can't be less than zero.  The bug means
that we allow invalid pause-times.

Fixes: 57ba4c9b56d8 ('fsl/fman: Add FMan MAC support')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c 
b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index d78e2ba..587f9b4 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -934,7 +934,7 @@ int dtsec_set_tx_pause_frames(struct fman_mac *dtsec,
 
        /* FM_BAD_TX_TS_IN_B_2_B_ERRATA_DTSEC_A003 Errata workaround */
        if (dtsec->fm_rev_info.major == 2)
-               if (pause_time < 0 && pause_time <= 320) {
+               if (pause_time <= 320) {
                        pr_warn("pause-time: %d illegal.Should be > 320\n",
                                pause_time);
                        return -EINVAL;
--
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