summaryrefslogtreecommitdiff
path: root/drivers/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/Kconfig4
-rw-r--r--drivers/char/drm/drmP.h1
-rw-r--r--drivers/char/generic_serial.c1
-rw-r--r--drivers/char/hw_random/core.c14
-rw-r--r--drivers/char/keyboard.c3
-rw-r--r--drivers/char/misc.c13
-rw-r--r--drivers/char/rio/rioboot.c1
-rw-r--r--drivers/char/rio/riocmd.c1
-rw-r--r--drivers/char/rio/rioctrl.c1
-rw-r--r--drivers/char/rio/rioinit.c1
-rw-r--r--drivers/char/rio/riointr.c1
-rw-r--r--drivers/char/rio/rioparam.c1
-rw-r--r--drivers/char/rio/rioroute.c1
-rw-r--r--drivers/char/rio/riotable.c1
-rw-r--r--drivers/char/rio/riotty.c1
-rw-r--r--drivers/char/snsc.h2
-rw-r--r--drivers/char/tty_io.c47
17 files changed, 65 insertions, 29 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 47c6be84fc84..a87b89db08e9 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -706,7 +706,7 @@ config NVRAM
config RTC
tristate "Enhanced Real Time Clock Support"
- depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV && !ARM && !SUPERH && !S390
+ depends on !PPC && !PARISC && !IA64 && !M68K && !SPARC && !FRV && !ARM && !SUPERH && !S390 && !AVR32
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
@@ -776,7 +776,7 @@ config SGI_IP27_RTC
config GEN_RTC
tristate "Generic /dev/rtc emulation"
- depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH
+ depends on RTC!=y && !IA64 && !ARM && !M32R && !MIPS && !SPARC && !FRV && !S390 && !SUPERH && !AVR32
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 8ea9dd1717a9..6540948d5176 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -640,7 +640,6 @@ struct drm_head {
struct drm_device *dev;
struct proc_dir_entry *dev_root; /**< proc directory entry */
dev_t device; /**< Device number for mknod */
- struct class_device *dev_class;
};
/**
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index 8facf3e25c49..7ed7da1d99cf 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -28,7 +28,6 @@
#include <linux/interrupt.h>
#include <linux/tty_flip.h>
#include <linux/delay.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#define DEBUG
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 84cdf9025737..662d60e44e9a 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -116,6 +116,10 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
err = -EAGAIN;
if (!bytes_read && (filp->f_flags & O_NONBLOCK))
goto out;
+ if (bytes_read < 0) {
+ err = bytes_read;
+ goto out;
+ }
err = -EFAULT;
while (bytes_read && size) {
@@ -234,11 +238,11 @@ static DEVICE_ATTR(rng_available, S_IRUGO,
NULL);
-static void unregister_miscdev(bool suspended)
+static void unregister_miscdev(void)
{
device_remove_file(rng_miscdev.this_device, &dev_attr_rng_available);
device_remove_file(rng_miscdev.this_device, &dev_attr_rng_current);
- __misc_deregister(&rng_miscdev, suspended);
+ misc_deregister(&rng_miscdev);
}
static int register_miscdev(void)
@@ -313,7 +317,7 @@ out:
}
EXPORT_SYMBOL_GPL(hwrng_register);
-void __hwrng_unregister(struct hwrng *rng, bool suspended)
+void hwrng_unregister(struct hwrng *rng)
{
int err;
@@ -332,11 +336,11 @@ void __hwrng_unregister(struct hwrng *rng, bool suspended)
}
}
if (list_empty(&rng_list))
- unregister_miscdev(suspended);
+ unregister_miscdev();
mutex_unlock(&rng_mutex);
}
-EXPORT_SYMBOL_GPL(__hwrng_unregister);
+EXPORT_SYMBOL_GPL(hwrng_unregister);
MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver");
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 4dbd3425e928..9769bf8279a6 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1033,7 +1033,8 @@ DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
- (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
+ (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\
+ defined(CONFIG_AVR32)
#define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index a39101feb2ed..4d058dadbfcc 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -232,9 +232,8 @@ int misc_register(struct miscdevice * misc)
}
/**
- * __misc_deregister - unregister a miscellaneous device
+ * misc_deregister - unregister a miscellaneous device
* @misc: device to unregister
- * @suspended: to be set if the function is used during suspend/resume
*
* Unregister a miscellaneous device that was previously
* successfully registered with misc_register(). Success
@@ -242,7 +241,7 @@ int misc_register(struct miscdevice * misc)
* indicates an error.
*/
-int __misc_deregister(struct miscdevice *misc, bool suspended)
+int misc_deregister(struct miscdevice *misc)
{
int i = misc->minor;
@@ -251,11 +250,7 @@ int __misc_deregister(struct miscdevice *misc, bool suspended)
mutex_lock(&misc_mtx);
list_del(&misc->list);
- if (suspended)
- destroy_suspended_device(misc_class,
- MKDEV(MISC_MAJOR, misc->minor));
- else
- device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
+ device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
if (i < DYNAMIC_MINORS && i>0) {
misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
}
@@ -264,7 +259,7 @@ int __misc_deregister(struct miscdevice *misc, bool suspended)
}
EXPORT_SYMBOL(misc_register);
-EXPORT_SYMBOL(__misc_deregister);
+EXPORT_SYMBOL(misc_deregister);
static int __init misc_init(void)
{
diff --git a/drivers/char/rio/rioboot.c b/drivers/char/rio/rioboot.c
index eca2b95343e2..d956dd316005 100644
--- a/drivers/char/rio/rioboot.c
+++ b/drivers/char/rio/rioboot.c
@@ -35,7 +35,6 @@
#include <linux/termios.h>
#include <linux/serial.h>
#include <linux/vmalloc.h>
-#include <asm/semaphore.h>
#include <linux/generic_serial.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 7321d002c34f..bf36959fc121 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -41,7 +41,6 @@ static char *_riocmd_c_sccs_ = "@(#)riocmd.c 1.2";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/rioctrl.c b/drivers/char/rio/rioctrl.c
index 7ce77619707c..d8eb2bcbe015 100644
--- a/drivers/char/rio/rioctrl.c
+++ b/drivers/char/rio/rioctrl.c
@@ -40,7 +40,6 @@ static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c 1.3";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/rioinit.c b/drivers/char/rio/rioinit.c
index 0794844369d6..add1718295ef 100644
--- a/drivers/char/rio/rioinit.c
+++ b/drivers/char/rio/rioinit.c
@@ -40,7 +40,6 @@ static char *_rioinit_c_sccs_ = "@(#)rioinit.c 1.3";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c
index ebc76342712c..4734e26e1ccd 100644
--- a/drivers/char/rio/riointr.c
+++ b/drivers/char/rio/riointr.c
@@ -42,7 +42,6 @@ static char *_riointr_c_sccs_ = "@(#)riointr.c 1.2";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c
index bb498d24adcc..da276ed57b3f 100644
--- a/drivers/char/rio/rioparam.c
+++ b/drivers/char/rio/rioparam.c
@@ -41,7 +41,6 @@ static char *_rioparam_c_sccs_ = "@(#)rioparam.c 1.3";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/rioroute.c b/drivers/char/rio/rioroute.c
index a99f3d9d7d65..85091ff74d96 100644
--- a/drivers/char/rio/rioroute.c
+++ b/drivers/char/rio/rioroute.c
@@ -39,7 +39,6 @@ static char *_rioroute_c_sccs_ = "@(#)rioroute.c 1.3";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c
index 9b52892a501f..2b24488e95f2 100644
--- a/drivers/char/rio/riotable.c
+++ b/drivers/char/rio/riotable.c
@@ -42,7 +42,6 @@ static char *_riotable_c_sccs_ = "@(#)riotable.c 1.2";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c
index cfa54361473f..1cb8580a161d 100644
--- a/drivers/char/rio/riotty.c
+++ b/drivers/char/rio/riotty.c
@@ -44,7 +44,6 @@ static char *_riotty_c_sccs_ = "@(#)riotty.c 1.3";
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include <linux/termios.h>
diff --git a/drivers/char/snsc.h b/drivers/char/snsc.h
index 8a98169b60c1..4be62eda9fbc 100644
--- a/drivers/char/snsc.h
+++ b/drivers/char/snsc.h
@@ -22,8 +22,8 @@
#include <linux/kobject.h>
#include <linux/fs.h>
#include <linux/cdev.h>
+#include <linux/semaphore.h>
#include <asm/sn/types.h>
-#include <asm/semaphore.h>
#define CHUNKSIZE 127
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 613ec816ce60..4d3c7018f0c3 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1155,6 +1155,48 @@ static struct tty_driver *get_tty_driver(dev_t device, int *index)
return NULL;
}
+#ifdef CONFIG_CONSOLE_POLL
+
+/**
+ * tty_find_polling_driver - find device of a polled tty
+ * @name: name string to match
+ * @line: pointer to resulting tty line nr
+ *
+ * This routine returns a tty driver structure, given a name
+ * and the condition that the tty driver is capable of polled
+ * operation.
+ */
+struct tty_driver *tty_find_polling_driver(char *name, int *line)
+{
+ struct tty_driver *p, *res = NULL;
+ int tty_line = 0;
+ char *str;
+
+ mutex_lock(&tty_mutex);
+ /* Search through the tty devices to look for a match */
+ list_for_each_entry(p, &tty_drivers, tty_drivers) {
+ str = name + strlen(p->name);
+ tty_line = simple_strtoul(str, &str, 10);
+ if (*str == ',')
+ str++;
+ if (*str == '\0')
+ str = 0;
+
+ if (tty_line >= 0 && tty_line <= p->num && p->poll_init &&
+ !p->poll_init(p, tty_line, str)) {
+
+ res = p;
+ *line = tty_line;
+ break;
+ }
+ }
+ mutex_unlock(&tty_mutex);
+
+ return res;
+}
+EXPORT_SYMBOL_GPL(tty_find_polling_driver);
+#endif
+
/**
* tty_check_change - check for POSIX terminal changes
* @tty: tty to check
@@ -3850,6 +3892,11 @@ void tty_set_operations(struct tty_driver *driver,
driver->write_proc = op->write_proc;
driver->tiocmget = op->tiocmget;
driver->tiocmset = op->tiocmset;
+#ifdef CONFIG_CONSOLE_POLL
+ driver->poll_init = op->poll_init;
+ driver->poll_get_char = op->poll_get_char;
+ driver->poll_put_char = op->poll_put_char;
+#endif
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-06 23:46:15 +0000