[PATCH] staging: kpc2000: fix brace issues in kpc2000_spi.c

Simon Sandström simon at nikanor.nu
Thu Jun 27 19:53:23 UTC 2019


Fixes issues found by checkpatch:

- "WARNING: braces {} are not necessary for single statement blocks"
- "WARNING: braces {} are not necessary for any arm of this statement"

Signed-off-by: Simon Sandström <simon at nikanor.nu>
---
 drivers/staging/kpc2000/kpc2000_spi.c | 39 ++++++++++-----------------
 1 file changed, 14 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/kpc2000/kpc2000_spi.c b/drivers/staging/kpc2000/kpc2000_spi.c
index 98484fbb9d2e..76db8e8510df 100644
--- a/drivers/staging/kpc2000/kpc2000_spi.c
+++ b/drivers/staging/kpc2000/kpc2000_spi.c
@@ -164,9 +164,9 @@ kp_spi_read_reg(struct kp_spi_controller_state *cs, int idx)
 	u64 val;
 
 	addr += idx;
-	if ((idx == KP_SPI_REG_CONFIG) && (cs->conf_cache >= 0)) {
+	if ((idx == KP_SPI_REG_CONFIG) && (cs->conf_cache >= 0))
 		return cs->conf_cache;
-	}
+
 	val = readq(addr);
 	return val;
 }
@@ -188,11 +188,10 @@ kp_spi_wait_for_reg_bit(struct kp_spi_controller_state *cs, int idx, unsigned lo
 	timeout = jiffies + msecs_to_jiffies(1000);
 	while (!(kp_spi_read_reg(cs, idx) & bit)) {
 		if (time_after(jiffies, timeout)) {
-			if (!(kp_spi_read_reg(cs, idx) & bit)) {
+			if (!(kp_spi_read_reg(cs, idx) & bit))
 				return -ETIMEDOUT;
-			} else {
+			else
 				return 0;
-			}
 		}
 		cpu_relax();
 	}
@@ -215,9 +214,8 @@ kp_spi_txrx_pio(struct spi_device *spidev, struct spi_transfer *transfer)
 		for (i = 0 ; i < c ; i++) {
 			char val = *tx++;
 
-			if (kp_spi_wait_for_reg_bit(cs, KP_SPI_REG_STATUS, KP_SPI_REG_STATUS_TXS) < 0) {
+			if (kp_spi_wait_for_reg_bit(cs, KP_SPI_REG_STATUS, KP_SPI_REG_STATUS_TXS) < 0)
 				goto out;
-			}
 
 			kp_spi_write_reg(cs, KP_SPI_REG_TXDATA, val);
 			processed++;
@@ -229,9 +227,8 @@ kp_spi_txrx_pio(struct spi_device *spidev, struct spi_transfer *transfer)
 
 			kp_spi_write_reg(cs, KP_SPI_REG_TXDATA, 0x00);
 
-			if (kp_spi_wait_for_reg_bit(cs, KP_SPI_REG_STATUS, KP_SPI_REG_STATUS_RXS) < 0) {
+			if (kp_spi_wait_for_reg_bit(cs, KP_SPI_REG_STATUS, KP_SPI_REG_STATUS_RXS) < 0)
 				goto out;
-			}
 
 			test = kp_spi_read_reg(cs, KP_SPI_REG_RXDATA);
 			*rx++ = test;
@@ -261,9 +258,8 @@ kp_spi_setup(struct spi_device *spidev)
 	cs = spidev->controller_state;
 	if (!cs) {
 		cs = kzalloc(sizeof(*cs), GFP_KERNEL);
-		if (!cs) {
+		if (!cs)
 			return -ENOMEM;
-		}
 		cs->base = kpspi->base;
 		cs->conf_cache = -1;
 		spidev->controller_state = cs;
@@ -297,9 +293,8 @@ kp_spi_transfer_one_message(struct spi_master *master, struct spi_message *m)
 	cs = spidev->controller_state;
 
 	/* reject invalid messages and transfers */
-	if (list_empty(&m->transfers)) {
+	if (list_empty(&m->transfers))
 		return -EINVAL;
-	}
 
 	/* validate input */
 	list_for_each_entry(transfer, &m->transfers, transfer_list) {
@@ -353,17 +348,14 @@ kp_spi_transfer_one_message(struct spi_master *master, struct spi_message *m)
 			sc.reg = kp_spi_read_reg(cs, KP_SPI_REG_CONFIG);
 
 			/* ...direction */
-			if (transfer->tx_buf) {
+			if (transfer->tx_buf)
 				sc.bitfield.trm = KP_SPI_REG_CONFIG_TRM_TX;
-			}
-			else if (transfer->rx_buf) {
+			else if (transfer->rx_buf)
 				sc.bitfield.trm = KP_SPI_REG_CONFIG_TRM_RX;
-			}
 
 			/* ...word length */
-			if (transfer->bits_per_word) {
+			if (transfer->bits_per_word)
 				word_len = transfer->bits_per_word;
-			}
 			sc.bitfield.wl = word_len - 1;
 
 			/* ...chip select */
@@ -382,9 +374,8 @@ kp_spi_transfer_one_message(struct spi_master *master, struct spi_message *m)
 			}
 		}
 
-		if (transfer->delay_usecs) {
+		if (transfer->delay_usecs)
 			udelay(transfer->delay_usecs);
-		}
 	}
 
 	/* de-assert chip select to end the sequence */
@@ -406,9 +397,8 @@ kp_spi_transfer_one_message(struct spi_master *master, struct spi_message *m)
 kp_spi_cleanup(struct spi_device *spidev)
 {
 	struct kp_spi_controller_state *cs = spidev->controller_state;
-	if (cs) {
+	if (cs)
 		kfree(cs);
-	}
 }
 
 /******************
@@ -450,9 +440,8 @@ kp_spi_probe(struct platform_device *pldev)
 	kpspi->dev = &pldev->dev;
 
 	master->num_chipselect = 4;
-	if (pldev->id != -1) {
+	if (pldev->id != -1)
 		master->bus_num = pldev->id;
-	}
 
 	r = platform_get_resource(pldev, IORESOURCE_MEM, 0);
 	if (r == NULL) {
-- 
2.20.1



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