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samples/kfifo: Rename read_lock/write_lock 

The variables names read_lock and write_lock can clash with functions used for
read/writer locks.

Rename read_lock to read_access and write_lock to write_access to avoid a name
collision.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lkml.kernel.org/r/20210806152551.qio7c3ho6pexezup@linutronix.de
Link: https://lore.kernel.org/r/20210923172918.o22iwgvn3w7ilh44@linutronix.de
Acked-by: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sebastian Andrzej Siewior 2021-09-23 19:29:18 +02:00 committed by Greg Kroah-Hartman
parent 85385a51ce
commit 880732ae31
3 changed files with 18 additions and 18 deletions
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12
samples/kfifo/bytestream-example.c
View File

@ -22,10 +22,10 @@
#define PROC_FIFO "bytestream-fifo"
/* lock for procfs read access */
static DEFINE_MUTEX(read_lock);
static DEFINE_MUTEX(read_access);
/* lock for procfs write access */
static DEFINE_MUTEX(write_lock);
static DEFINE_MUTEX(write_access);
/*
* define DYNAMIC in this example for a dynamically allocated fifo.
@ -116,12 +116,12 @@ static ssize_t fifo_write(struct file *file, const char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&write_lock))
if (mutex_lock_interruptible(&write_access))
return -ERESTARTSYS;
ret = kfifo_from_user(&test, buf, count, &copied);
mutex_unlock(&write_lock);
mutex_unlock(&write_access);
if (ret)
return ret;
@ -134,12 +134,12 @@ static ssize_t fifo_read(struct file *file, char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&read_lock))
if (mutex_lock_interruptible(&read_access))
return -ERESTARTSYS;
ret = kfifo_to_user(&test, buf, count, &copied);
mutex_unlock(&read_lock);
mutex_unlock(&read_access);
if (ret)
return ret;

12
samples/kfifo/inttype-example.c
View File

@ -22,10 +22,10 @@
#define PROC_FIFO "int-fifo"
/* lock for procfs read access */
static DEFINE_MUTEX(read_lock);
static DEFINE_MUTEX(read_access);
/* lock for procfs write access */
static DEFINE_MUTEX(write_lock);
static DEFINE_MUTEX(write_access);
/*
* define DYNAMIC in this example for a dynamically allocated fifo.
@ -109,12 +109,12 @@ static ssize_t fifo_write(struct file *file, const char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&write_lock))
if (mutex_lock_interruptible(&write_access))
return -ERESTARTSYS;
ret = kfifo_from_user(&test, buf, count, &copied);
mutex_unlock(&write_lock);
mutex_unlock(&write_access);
if (ret)
return ret;
@ -127,12 +127,12 @@ static ssize_t fifo_read(struct file *file, char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&read_lock))
if (mutex_lock_interruptible(&read_access))
return -ERESTARTSYS;
ret = kfifo_to_user(&test, buf, count, &copied);
mutex_unlock(&read_lock);
mutex_unlock(&read_access);
if (ret)
return ret;

12
samples/kfifo/record-example.c
View File

@ -22,10 +22,10 @@
#define PROC_FIFO "record-fifo"
/* lock for procfs read access */
static DEFINE_MUTEX(read_lock);
static DEFINE_MUTEX(read_access);
/* lock for procfs write access */
static DEFINE_MUTEX(write_lock);
static DEFINE_MUTEX(write_access);
/*
* define DYNAMIC in this example for a dynamically allocated fifo.
@ -123,12 +123,12 @@ static ssize_t fifo_write(struct file *file, const char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&write_lock))
if (mutex_lock_interruptible(&write_access))
return -ERESTARTSYS;
ret = kfifo_from_user(&test, buf, count, &copied);
mutex_unlock(&write_lock);
mutex_unlock(&write_access);
if (ret)
return ret;
@ -141,12 +141,12 @@ static ssize_t fifo_read(struct file *file, char __user *buf,
int ret;
unsigned int copied;
if (mutex_lock_interruptible(&read_lock))
if (mutex_lock_interruptible(&read_access))
return -ERESTARTSYS;
ret = kfifo_to_user(&test, buf, count, &copied);
mutex_unlock(&read_lock);
mutex_unlock(&read_access);
if (ret)
return ret;