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Date: Sun, 17 Jul 2016 20:22:39 +0200
From: SF Markus Elfring <elfring@...rs.sourceforge.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Wolfram Sang <wsa@...-dreams.de>, devel@...verdev.osuosl.org
Cc: LKML <linux-kernel@...r.kernel.org>,
kernel-janitors@...r.kernel.org,
Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 5/9] staging: ks7010: Delete unnecessary uses of the variable
"retval"
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 17 Jul 2016 18:15:23 +0200
Some return values can also be directly used for various condition checks.
Thus remove a local variable for intermediate assignments.
Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
drivers/staging/ks7010/ks7010_sdio.c | 81 +++++++++++++++---------------------
1 file changed, 34 insertions(+), 47 deletions(-)
diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
index eea18fb..b3ca8e2 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -90,7 +90,6 @@ static int ks7010_sdio_write(struct ks_wlan_private *priv, unsigned int address,
void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv)
{
unsigned char rw_data;
- int retval;
DPRINTK(4, "\n");
@@ -99,9 +98,10 @@ void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv)
if (atomic_read(&priv->sleepstatus.status) == 0) {
rw_data = GCR_B_DOZE;
- retval =
- ks7010_sdio_write(priv, GCR_B, &rw_data, sizeof(rw_data));
- if (retval) {
+ if (ks7010_sdio_write(priv,
+ GCR_B,
+ &rw_data,
+ sizeof(rw_data))) {
DPRINTK(1, " error : GCR_B=%02X\n", rw_data);
goto out;
}
@@ -121,7 +121,6 @@ out:
void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv)
{
unsigned char rw_data;
- int retval;
DPRINTK(4, "\n");
@@ -130,9 +129,10 @@ void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv)
if (atomic_read(&priv->sleepstatus.status) == 1) {
rw_data = WAKEUP_REQ;
- retval =
- ks7010_sdio_write(priv, WAKEUP, &rw_data, sizeof(rw_data));
- if (retval) {
+ if (ks7010_sdio_write(priv,
+ WAKEUP,
+ &rw_data,
+ sizeof(rw_data))) {
DPRINTK(1, " error : WAKEUP=%02X\n", rw_data);
goto out;
}
@@ -152,16 +152,15 @@ out:
void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv)
{
unsigned char rw_data;
- int retval;
DPRINTK(4, "\n");
if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
rw_data = WAKEUP_REQ;
- retval =
- ks7010_sdio_write(priv, WAKEUP, &rw_data, sizeof(rw_data));
- if (retval) {
+ if (ks7010_sdio_write(priv,
+ WAKEUP,
+ &rw_data,
+ sizeof(rw_data)))
DPRINTK(1, " error : WAKEUP=%02X\n", rw_data);
- }
DPRINTK(4, "wake up : WAKEUP=%02X\n", rw_data);
priv->last_wakeup = jiffies;
++priv->wakeup_count;
@@ -175,7 +174,6 @@ int _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
{
int rc = 0;
unsigned char rw_data;
- int retval;
if (priv->reg.powermgt == POWMGT_ACTIVE_MODE)
return rc;
@@ -198,11 +196,11 @@ int _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
if (!atomic_read(&priv->psstatus.confirm_wait)
&& !atomic_read(&priv->psstatus.snooze_guard)
&& !cnt_txqbody(priv)) {
- retval =
- ks7010_sdio_read(priv, INT_PENDING,
+ if (ks7010_sdio_read(priv,
+ INT_PENDING,
&rw_data,
- sizeof(rw_data));
- if (retval) {
+ sizeof(rw_data))
+ ) {
DPRINTK(1,
" error : INT_PENDING=%02X\n",
rw_data);
@@ -212,12 +210,11 @@ int _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
}
if (!rw_data) {
rw_data = GCR_B_DOZE;
- retval =
- ks7010_sdio_write(priv,
+ if (ks7010_sdio_write(priv,
GCR_B,
&rw_data,
- sizeof(rw_data));
- if (retval) {
+ sizeof(rw_data))
+ ) {
DPRINTK(1,
" error : GCR_B=%02X\n",
rw_data);
@@ -413,7 +410,6 @@ static void rx_event_task(unsigned long dev)
static void ks_wlan_hw_rx(void *dev, uint16_t size)
{
struct ks_wlan_private *priv = (struct ks_wlan_private *)dev;
- int retval;
struct rx_device_buffer *rx_buffer;
struct hostif_hdr *hdr;
unsigned char read_status;
@@ -429,12 +425,11 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
}
rx_buffer = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qtail];
- retval =
- ks7010_sdio_read(priv, DATA_WINDOW, &rx_buffer->data[0],
- hif_align_size(size));
- if (retval) {
+ if (ks7010_sdio_read(priv,
+ DATA_WINDOW,
+ &rx_buffer->data[0],
+ hif_align_size(size)))
goto error_out;
- }
/* length check */
if (size > 2046 || size == 0) {
@@ -446,12 +441,11 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
#endif
/* rx_status update */
read_status = READ_STATUS_IDLE;
- retval =
- ks7010_sdio_write(priv, READ_STATUS, &read_status,
- sizeof(read_status));
- if (retval) {
+ if (ks7010_sdio_write(priv,
+ READ_STATUS,
+ &read_status,
+ sizeof(read_status)))
DPRINTK(1, " error : READ_STATUS=%02X\n", read_status);
- }
goto error_out;
}
@@ -462,12 +456,11 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
/* read status update */
read_status = READ_STATUS_IDLE;
- retval =
- ks7010_sdio_write(priv, READ_STATUS, &read_status,
- sizeof(read_status));
- if (retval) {
+ if (ks7010_sdio_write(priv,
+ READ_STATUS,
+ &read_status,
+ sizeof(read_status)))
DPRINTK(1, " error : READ_STATUS=%02X\n", read_status);
- }
DPRINTK(4, "READ_STATUS=%02X\n", read_status);
if (atomic_read(&priv->psstatus.confirm_wait)) {
@@ -489,7 +482,6 @@ static void ks7010_rw_function(struct work_struct *work)
struct hw_info_t *hw;
struct ks_wlan_private *priv;
unsigned char rw_data;
- int retval;
hw = container_of(work, struct hw_info_t, rw_wq.work);
priv = container_of(hw, struct ks_wlan_private, ks_wlan_hw);
@@ -538,9 +530,7 @@ static void ks7010_rw_function(struct work_struct *work)
}
/* read (WriteStatus/ReadDataSize FN1:00_0014) */
- retval =
- ks7010_sdio_read(priv, WSTATUS_RSIZE, &rw_data, sizeof(rw_data));
- if (retval) {
+ if (ks7010_sdio_read(priv, WSTATUS_RSIZE, &rw_data, sizeof(rw_data))) {
DPRINTK(1, " error : WSTATUS_RSIZE=%02X psstatus=%d\n", rw_data,
atomic_read(&priv->psstatus.status));
goto release_host;
@@ -708,7 +698,6 @@ static void trx_device_exit(struct ks_wlan_private *priv)
static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
{
int rc = 0;
- int retval;
unsigned char *data_buf;
data_buf = kmalloc(sizeof(u32), GFP_KERNEL);
@@ -716,14 +705,12 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
return 1;
memcpy(data_buf, &index, sizeof(index));
- retval = ks7010_sdio_write(priv, WRITE_INDEX, data_buf, sizeof(index));
- if (retval) {
+ if (ks7010_sdio_write(priv, WRITE_INDEX, data_buf, sizeof(index))) {
rc = 2;
goto free_buf;
}
- retval = ks7010_sdio_write(priv, READ_INDEX, data_buf, sizeof(index));
- if (retval)
+ if (ks7010_sdio_write(priv, READ_INDEX, data_buf, sizeof(index)))
rc = 3;
free_buf:
kfree(data_buf);
--
2.9.1
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