[PATCH v2] raw/ntb: immediate return if no doorbells

[Tofig Aliev]

Added immediate return from ntb_dev_intr_handler()
if no doorbells.

Signed-off-by: Tofig Aliev <t.aliev....@gmail.com>

---
Changes in v2:
Fixed incorrect patch file.
---
 drivers/raw/ntb/ntb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/raw/ntb/ntb.c b/drivers/raw/ntb/ntb.c
index 0ed4c14592..e298820e5f 100644
--- a/drivers/raw/ntb/ntb.c
+++ b/drivers/raw/ntb/ntb.c
@@ -158,8 +158,10 @@ ntb_dev_intr_handler(void *param)
        }
 
        db_bits = (*hw->ntb_ops->db_read)(dev);
-       if (!db_bits)
+       if (!db_bits) {
                NTB_LOG(ERR, "No doorbells");
+               return;
+       }
 
        /* Doorbell 0 is for peer device ready. */
        if (db_bits & 1) {
-- 
2.43.0