1 files changed, 23 insertions, 20 deletions

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 957d96a91a8a..a36f6369f132 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -144,6 +144,18 @@ static int lan743x_csr_light_reset(struct lan743x_adapter *adapter)
 				  !(data & HW_CFG_LRST_), 100000, 10000000);
 }
 
+static int lan743x_csr_wait_for_bit_atomic(struct lan743x_adapter *adapter,
+					   int offset, u32 bit_mask,
+					   int target_value, int udelay_min,
+					   int udelay_max, int count)
+{
+	u32 data;
+
+	return readx_poll_timeout_atomic(LAN743X_CSR_READ_OP, offset, data,
+					 target_value == !!(data & bit_mask),
+					 udelay_max, udelay_min * count);
+}
+
 static int lan743x_csr_wait_for_bit(struct lan743x_adapter *adapter,
 				    int offset, u32 bit_mask,
 				    int target_value, int usleep_min,
@@ -152,7 +164,7 @@ static int lan743x_csr_wait_for_bit(struct lan743x_adapter *adapter,
 	u32 data;
 
 	return readx_poll_timeout(LAN743X_CSR_READ_OP, offset, data,
-				  target_value == ((data & bit_mask) ? 1 : 0),
+				  target_value == !!(data & bit_mask),
 				  usleep_max, usleep_min * count);
 }
 
@@ -160,16 +172,13 @@ static int lan743x_csr_init(struct lan743x_adapter *adapter)
 {
 	struct lan743x_csr *csr = &adapter->csr;
 	resource_size_t bar_start, bar_length;
-	int result;
 
 	bar_start = pci_resource_start(adapter->pdev, 0);
 	bar_length = pci_resource_len(adapter->pdev, 0);
 	csr->csr_address = devm_ioremap(&adapter->pdev->dev,
 					bar_start, bar_length);
-	if (!csr->csr_address) {
-		result = -ENOMEM;
-		goto clean_up;
-	}
+	if (!csr->csr_address)
+		return -ENOMEM;
 
 	csr->id_rev = lan743x_csr_read(adapter, ID_REV);
 	csr->fpga_rev = lan743x_csr_read(adapter, FPGA_REV);
@@ -177,10 +186,8 @@ static int lan743x_csr_init(struct lan743x_adapter *adapter)
 		   "ID_REV = 0x%08X, FPGA_REV = %d.%d\n",
 		   csr->id_rev,	FPGA_REV_GET_MAJOR_(csr->fpga_rev),
 		   FPGA_REV_GET_MINOR_(csr->fpga_rev));
-	if (!ID_REV_IS_VALID_CHIP_ID_(csr->id_rev)) {
-		result = -ENODEV;
-		goto clean_up;
-	}
+	if (!ID_REV_IS_VALID_CHIP_ID_(csr->id_rev))
+		return -ENODEV;
 
 	csr->flags = LAN743X_CSR_FLAG_SUPPORTS_INTR_AUTO_SET_CLR;
 	switch (csr->id_rev & ID_REV_CHIP_REV_MASK_) {
@@ -193,12 +200,7 @@ static int lan743x_csr_init(struct lan743x_adapter *adapter)
 		break;
 	}
 
-	result = lan743x_csr_light_reset(adapter);
-	if (result)
-		goto clean_up;
-	return 0;
-clean_up:
-	return result;
+	return lan743x_csr_light_reset(adapter);
 }
 
 static void lan743x_intr_software_isr(struct lan743x_adapter *adapter)
@@ -746,8 +748,8 @@ static int lan743x_dp_write(struct lan743x_adapter *adapter,
 	u32 dp_sel;
 	int i;
 
-	if (lan743x_csr_wait_for_bit(adapter, DP_SEL, DP_SEL_DPRDY_,
-				     1, 40, 100, 100))
+	if (lan743x_csr_wait_for_bit_atomic(adapter, DP_SEL, DP_SEL_DPRDY_,
+					    1, 40, 100, 100))
 		return -EIO;
 	dp_sel = lan743x_csr_read(adapter, DP_SEL);
 	dp_sel &= ~DP_SEL_MASK_;
@@ -758,8 +760,9 @@ static int lan743x_dp_write(struct lan743x_adapter *adapter,
 		lan743x_csr_write(adapter, DP_ADDR, addr + i);
 		lan743x_csr_write(adapter, DP_DATA_0, buf[i]);
 		lan743x_csr_write(adapter, DP_CMD, DP_CMD_WRITE_);
-		if (lan743x_csr_wait_for_bit(adapter, DP_SEL, DP_SEL_DPRDY_,
-					     1, 40, 100, 100))
+		if (lan743x_csr_wait_for_bit_atomic(adapter, DP_SEL,
+						    DP_SEL_DPRDY_,
+						    1, 40, 100, 100))
 			return -EIO;
 	}