Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.
Signed-off-by: David Howells <dhowe...@redhat.com>
cc: Arnd Bergmann <a...@arndb.de>
cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/char/ds1620.c | 33 +++++++++++++++++++--------------
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c
index b599fae..544b4ce 100644
--- a/drivers/char/ds1620.c
+++ b/drivers/char/ds1620.c
@@ -6,6 +6,7 @@
#include <linux/miscdevice.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/capability.h>
#include <linux/init.h>
#include <linux/mutex.h>
@@ -329,9 +330,7 @@ ds1620_unlocked_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
}
#ifdef THERM_USE_PROC
-static int
-proc_therm_ds1620_read(char *buf, char **start, off_t offset,
- int len, int *eof, void *unused)
+static int ds1620_proc_therm_show(struct seq_file *m, void *v)
{
struct therm th;
int temp;
@@ -339,17 +338,25 @@ proc_therm_ds1620_read(char *buf, char **start, off_t
offset,
ds1620_read_state(&th);
temp = cvt_9_to_int(ds1620_in(THERM_READ_TEMP, 9));
- len = sprintf(buf, "Thermostat: HI %i.%i, LOW %i.%i; "
- "temperature: %i.%i C, fan %s\n",
- th.hi >> 1, th.hi & 1 ? 5 : 0,
- th.lo >> 1, th.lo & 1 ? 5 : 0,
- temp >> 1, temp & 1 ? 5 : 0,
- fan_state[netwinder_get_fan()]);
+ seq_printf(m, "Thermostat: HI %i.%i, LOW %i.%i; temperature: %i.%i C,
fan %s\n",
+ th.hi >> 1, th.hi & 1 ? 5 : 0,
+ th.lo >> 1, th.lo & 1 ? 5 : 0,
+ temp >> 1, temp & 1 ? 5 : 0,
+ fan_state[netwinder_get_fan()]);
+ return 0;
+}
- return len;
+static int ds1620_proc_therm_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ds1620_proc_therm_show, NULL);
}
-static struct proc_dir_entry *proc_therm_ds1620;
+static const struct file_operations ds1620_proc_therm_fops = {
+ .open = ds1620_proc_therm_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
#endif
static const struct file_operations ds1620_fops = {
@@ -397,9 +404,7 @@ static int __init ds1620_init(void)
return ret;
#ifdef THERM_USE_PROC
- proc_therm_ds1620 = create_proc_read_entry("therm", 0, NULL,
- proc_therm_ds1620_read, NULL);
- if (!proc_therm_ds1620)
+ if (!proc_create("therm", 0, NULL, &ds1620_proc_therm_fops))
printk(KERN_ERR "therm: unable to register /proc/therm\n");
#endif
--
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