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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 07:59:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 07:59:01 -0700
commit3a99c6319064af3f2e18eb929f638d555dbf7a62 (patch)
treee611927f41142123dc8efed7e07a3a91151edb01 /drivers/char
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 (diff)
parentMerge branch 'next' into for-linus (diff)
downloadlinux-dev-3a99c6319064af3f2e18eb929f638d555dbf7a62.tar.xz
linux-dev-3a99c6319064af3f2e18eb929f638d555dbf7a62.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (75 commits) Input: wacom - specify Cinitq supported tools Input: ab8500-ponkey - fix IRQ freeing in error path Input: adp5588-keys - use more obvious i2c_device_id name string Input: ad7877 - switch to using threaded IRQ Input: ad7877 - use attribute group to control visibility of attributes Input: serio - add support for PS2Mult multiplexer protocol Input: wacom - properly enable runtime PM Input: ad7877 - filter events where pressure is beyond the maximum Input: ad7877 - implement EV_KEY:BTN_TOUCH reporting Input: ad7877 - implement specified chip select behavior Input: hp680_ts_input - use cancel_delayed_work_sync() Input: mousedev - correct lockdep annotation Input: ads7846 - switch to using threaded IRQ Input: serio - support multiple child devices per single parent Input: synaptics - simplify pass-through port handling Input: add ROHM BU21013 touch panel controller support Input: omap4-keypad - wake-up on events & long presses Input: omap4-keypad - fix interrupt line configuration Input: omap4-keypad - SYSCONFIG register configuration Input: omap4-keypad - use platform device helpers ...
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/keyboard.c31
-rw-r--r--drivers/char/sysrq.c15
2 files changed, 36 insertions, 10 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index a7ca75212bfe..e95d7876ca6b 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -175,8 +175,7 @@ EXPORT_SYMBOL_GPL(unregister_keyboard_notifier);
*/
struct getset_keycode_data {
- unsigned int scancode;
- unsigned int keycode;
+ struct input_keymap_entry ke;
int error;
};
@@ -184,32 +183,50 @@ static int getkeycode_helper(struct input_handle *handle, void *data)
{
struct getset_keycode_data *d = data;
- d->error = input_get_keycode(handle->dev, d->scancode, &d->keycode);
+ d->error = input_get_keycode(handle->dev, &d->ke);
return d->error == 0; /* stop as soon as we successfully get one */
}
int getkeycode(unsigned int scancode)
{
- struct getset_keycode_data d = { scancode, 0, -ENODEV };
+ struct getset_keycode_data d = {
+ .ke = {
+ .flags = 0,
+ .len = sizeof(scancode),
+ .keycode = 0,
+ },
+ .error = -ENODEV,
+ };
+
+ memcpy(d.ke.scancode, &scancode, sizeof(scancode));
input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper);
- return d.error ?: d.keycode;
+ return d.error ?: d.ke.keycode;
}
static int setkeycode_helper(struct input_handle *handle, void *data)
{
struct getset_keycode_data *d = data;
- d->error = input_set_keycode(handle->dev, d->scancode, d->keycode);
+ d->error = input_set_keycode(handle->dev, &d->ke);
return d->error == 0; /* stop as soon as we successfully set one */
}
int setkeycode(unsigned int scancode, unsigned int keycode)
{
- struct getset_keycode_data d = { scancode, keycode, -ENODEV };
+ struct getset_keycode_data d = {
+ .ke = {
+ .flags = 0,
+ .len = sizeof(scancode),
+ .keycode = keycode,
+ },
+ .error = -ENODEV,
+ };
+
+ memcpy(d.ke.scancode, &scancode, sizeof(scancode));
input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper);
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index f3019f53e875..eaa5d3efa79d 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -566,10 +566,16 @@ static const unsigned char sysrq_xlate[KEY_MAX + 1] =
static bool sysrq_down;
static int sysrq_alt_use;
static int sysrq_alt;
+static DEFINE_SPINLOCK(sysrq_event_lock);
static bool sysrq_filter(struct input_handle *handle, unsigned int type,
unsigned int code, int value)
{
+ bool suppress;
+
+ /* We are called with interrupts disabled, just take the lock */
+ spin_lock(&sysrq_event_lock);
+
if (type != EV_KEY)
goto out;
@@ -601,7 +607,10 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type,
}
out:
- return sysrq_down;
+ suppress = sysrq_down;
+ spin_unlock(&sysrq_event_lock);
+
+ return suppress;
}
static int sysrq_connect(struct input_handler *handler,
@@ -652,8 +661,8 @@ static void sysrq_disconnect(struct input_handle *handle)
}
/*
- * We are matching on KEY_LEFTALT insteard of KEY_SYSRQ because not all
- * keyboards have SysRq ikey predefined and so user may add it to keymap
+ * We are matching on KEY_LEFTALT instead of KEY_SYSRQ because not all
+ * keyboards have SysRq key predefined and so user may add it to keymap
* later, but we expect all such keyboards to have left alt.
*/
static const struct input_device_id sysrq_ids[] = {