msm: ipc: Update recvmsg operation to be non-blocking by default
Update the IPC Router recvmsg operation to be non-blocking by default
and return 0 when there is no data to read.
CRs-Fixed: 464634
Change-Id: I1f43e3a36d72312372a3ac141d506c81a613c408
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
diff --git a/arch/arm/mach-msm/ipc_router.h b/arch/arm/mach-msm/ipc_router.h
index a50a37d..cafcdd2 100644
--- a/arch/arm/mach-msm/ipc_router.h
+++ b/arch/arm/mach-msm/ipc_router.h
@@ -48,7 +48,7 @@
#define IPC_ROUTER_XPRT_EVENT_CLOSE 3
#define IPC_ROUTER_INFINITY -1
-#define DEFAULT_RCV_TIMEO IPC_ROUTER_INFINITY
+#define DEFAULT_RCV_TIMEO 0
#define ALIGN_SIZE(x) ((4 - ((x) & 3)) & 3)
diff --git a/arch/arm/mach-msm/ipc_socket.c b/arch/arm/mach-msm/ipc_socket.c
index 16b60a1..f40bd5d 100644
--- a/arch/arm/mach-msm/ipc_socket.c
+++ b/arch/arm/mach-msm/ipc_socket.c
@@ -414,7 +414,7 @@
}
if (timeout == 0)
- return -ETIMEDOUT;
+ return 0;
lock_sock(sk);
mutex_lock(&port_ptr->port_rx_q_lock);
}