Blackfin arch: Add return value check in bfin_sir_probe(), remove SSYNC().

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 15 insertions, 6 deletions

diff --git a/include/asm-blackfin/mach-bf527/bfin_sir.h b/include/asm-blackfin/mach-bf527/bfin_sir.h
index 0612d0c9501c..cfd8ad4f1f2c 100644
--- a/include/asm-blackfin/mach-bf527/bfin_sir.h
+++ b/include/asm-blackfin/mach-bf527/bfin_sir.h
@@ -118,16 +118,25 @@ static inline void SIR_UART_CLEAR_LSR(struct bfin_sir_port *port)
 
 #define DRIVER_NAME "bfin_sir"
 
-static void bfin_sir_hw_init(void)
+static int bfin_sir_hw_init(void)
 {
+        int ret = -ENODEV;
 #ifdef CONFIG_BFIN_SIR0
-        peripheral_request(P_UART0_TX, DRIVER_NAME);
-        peripheral_request(P_UART0_RX, DRIVER_NAME);
+        ret = peripheral_request(P_UART0_TX, DRIVER_NAME);
+        if (ret)
+                return ret;
+        ret = peripheral_request(P_UART0_RX, DRIVER_NAME);
+        if (ret)
+                return ret;
 #endif
 
 #ifdef CONFIG_BFIN_SIR1
-        peripheral_request(P_UART1_TX, DRIVER_NAME);
-        peripheral_request(P_UART1_RX, DRIVER_NAME);
+        ret = peripheral_request(P_UART1_TX, DRIVER_NAME);
+        if (ret)
+                return ret;
+        ret = peripheral_request(P_UART1_RX, DRIVER_NAME);
+        if (ret)
+                return ret;
 #endif
-        SSYNC();
+        return ret;
 }