[PATCH net-next] bnxt_en: cleanup DIM work on device shutdown

[Andy Gospodarek]

From: Andy Gospodarek <go...@broadcom.com>

Make sure to cancel any pending work that might update driver coalesce
settings when taking down an interface.

Fixes: 6a8788f25625 ("bnxt_en: add support for software dynamic interrupt 
moderation")
Signed-off-by: Andy Gospodarek <go...@broadcom.com>
Cc: Michael Chan <michael.c...@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 4b001d2..1500243 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6082,8 +6082,14 @@ static void bnxt_disable_napi(struct bnxt *bp)
        if (!bp->bnapi)
                return;
 
-       for (i = 0; i < bp->cp_nr_rings; i++)
+       for (i = 0; i < bp->cp_nr_rings; i++) {
+               struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring;
+
+               if (bp->bnapi[i]->rx_ring)
+                       cancel_work_sync(&cpr->dim.work);
+
                napi_disable(&bp->bnapi[i]->napi);
+       }
 }
 
 static void bnxt_enable_napi(struct bnxt *bp)
-- 
2.7.4