diag: Prevent unnecessary data ready counter update

The patch fixes unnecessary data ready counter update by
adding proper checks.

CRs-Fixed: 2180045
Change-Id: Iff34a9c6203324cd07964d69a1f525325b3a011b
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>
diff --git a/drivers/char/diag/diagfwd.c b/drivers/char/diag/diagfwd.c
index 1155087..166bd16 100644
--- a/drivers/char/diag/diagfwd.c
+++ b/drivers/char/diag/diagfwd.c
@@ -512,7 +512,7 @@
 				if (driver->client_map[j].pid != 0 &&
 					driver->client_map[j].pid ==
 					driver->md_session_map[i]->pid) {
-					if (!(driver->data_ready[i] & type)) {
+					if (!(driver->data_ready[j] & type)) {
 						driver->data_ready[j] |= type;
 						atomic_inc(
 						&driver->data_ready_notif[j]);