[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.mnt at 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