2024-06-03 09:16:35

by Wolfram Sang

[permalink] [raw]
Subject: [PATCH 4/6] wifi: p54: use 'time_left' variable with wait_for_completion_interruptible_timeout()

There is a confusing pattern in the kernel to use a variable named 'timeout' to
store the result of wait_for_completion_interruptible_timeout() causing patterns like:

timeout = wait_for_completion_interruptible_timeout(...)
if (!timeout) return -ETIMEDOUT;

with all kinds of permutations. Use 'time_left' as a variable to make the code
self explaining.

Fix to the proper variable type 'long' while here.

Signed-off-by: Wolfram Sang <[email protected]>
---
drivers/net/wireless/intersil/p54/fwio.c | 6 +++---
drivers/net/wireless/intersil/p54/p54pci.c | 8 ++++----
drivers/net/wireless/intersil/p54/p54spi.c | 10 +++++-----
3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/intersil/p54/fwio.c b/drivers/net/wireless/intersil/p54/fwio.c
index c4fe70e05b9b..772084a9bd8d 100644
--- a/drivers/net/wireless/intersil/p54/fwio.c
+++ b/drivers/net/wireless/intersil/p54/fwio.c
@@ -216,7 +216,7 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,
struct sk_buff *skb;
size_t eeprom_hdr_size;
int ret = 0;
- long timeout;
+ long time_left;

if (priv->fw_var >= 0x509)
eeprom_hdr_size = sizeof(*eeprom_hdr);
@@ -245,9 +245,9 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,

p54_tx(priv, skb);

- timeout = wait_for_completion_interruptible_timeout(
+ time_left = wait_for_completion_interruptible_timeout(
&priv->eeprom_comp, HZ);
- if (timeout <= 0) {
+ if (time_left <= 0) {
wiphy_err(priv->hw->wiphy,
"device does not respond or signal received!\n");
ret = -EBUSY;
diff --git a/drivers/net/wireless/intersil/p54/p54pci.c b/drivers/net/wireless/intersil/p54/p54pci.c
index e97ee547b9f3..6588f5477762 100644
--- a/drivers/net/wireless/intersil/p54/p54pci.c
+++ b/drivers/net/wireless/intersil/p54/p54pci.c
@@ -434,7 +434,7 @@ static int p54p_open(struct ieee80211_hw *dev)
{
struct p54p_priv *priv = dev->priv;
int err;
- long timeout;
+ long time_left;

init_completion(&priv->boot_comp);
err = request_irq(priv->pdev->irq, p54p_interrupt,
@@ -472,12 +472,12 @@ static int p54p_open(struct ieee80211_hw *dev)
P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
P54P_READ(dev_int);

- timeout = wait_for_completion_interruptible_timeout(
+ time_left = wait_for_completion_interruptible_timeout(
&priv->boot_comp, HZ);
- if (timeout <= 0) {
+ if (time_left <= 0) {
wiphy_err(dev->wiphy, "Cannot boot firmware!\n");
p54p_stop(dev);
- return timeout ? -ERESTARTSYS : -ETIMEDOUT;
+ return time_left ? -ERESTARTSYS : -ETIMEDOUT;
}

P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
diff --git a/drivers/net/wireless/intersil/p54/p54spi.c b/drivers/net/wireless/intersil/p54/p54spi.c
index 0073b5e0f9c9..d33a994906a7 100644
--- a/drivers/net/wireless/intersil/p54/p54spi.c
+++ b/drivers/net/wireless/intersil/p54/p54spi.c
@@ -518,7 +518,7 @@ static void p54spi_work(struct work_struct *work)
static int p54spi_op_start(struct ieee80211_hw *dev)
{
struct p54s_priv *priv = dev->priv;
- unsigned long timeout;
+ long time_left;
int ret = 0;

if (mutex_lock_interruptible(&priv->mutex)) {
@@ -538,10 +538,10 @@ static int p54spi_op_start(struct ieee80211_hw *dev)

mutex_unlock(&priv->mutex);

- timeout = msecs_to_jiffies(2000);
- timeout = wait_for_completion_interruptible_timeout(&priv->fw_comp,
- timeout);
- if (!timeout) {
+ time_left = msecs_to_jiffies(2000);
+ time_left = wait_for_completion_interruptible_timeout(&priv->fw_comp,
+ time_left);
+ if (!time_left) {
dev_err(&priv->spi->dev, "firmware boot failed");
p54spi_power_off(priv);
ret = -1;
--
2.43.0