rfkill: rename rfkill_mutex to rfkill_global_mutex
rfkill_mutex and rfkill->mutex are too easy to confuse with each other.
Rename rfkill_mutex to rfkill_global_mutex, so that they are easier to tell
apart with just one glance.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index 910699c..d573579 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -37,7 +37,7 @@
MODULE_LICENSE("GPL");
static LIST_HEAD(rfkill_list); /* list of registered rf switches */
-static DEFINE_MUTEX(rfkill_mutex);
+static DEFINE_MUTEX(rfkill_global_mutex);
static unsigned int rfkill_default_state = RFKILL_STATE_UNBLOCKED;
module_param_named(default_state, rfkill_default_state, uint, 0444);
@@ -234,7 +234,7 @@
* unless a specific switch is claimed by userspace (in which case,
* that switch is left alone) or suspended.
*
- * Caller must have acquired rfkill_mutex.
+ * Caller must have acquired rfkill_global_mutex.
*/
static void __rfkill_switch_all(const enum rfkill_type type,
const enum rfkill_state state)
@@ -263,14 +263,14 @@
* @type: type of interfaces to be affected
* @state: the new state
*
- * Acquires rfkill_mutex and calls __rfkill_switch_all(@type, @state).
+ * Acquires rfkill_global_mutex and calls __rfkill_switch_all(@type, @state).
* Please refer to __rfkill_switch_all() for details.
*/
void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state)
{
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
__rfkill_switch_all(type, state);
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
}
EXPORT_SYMBOL(rfkill_switch_all);
@@ -278,7 +278,7 @@
* rfkill_epo - emergency power off all transmitters
*
* This kicks all non-suspended rfkill devices to RFKILL_STATE_SOFT_BLOCKED,
- * ignoring everything in its path but rfkill_mutex and rfkill->mutex.
+ * ignoring everything in its path but rfkill_global_mutex and rfkill->mutex.
*
* The global state before the EPO is saved and can be restored later
* using rfkill_restore_states().
@@ -288,7 +288,8 @@
struct rfkill *rfkill;
int i;
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
+
list_for_each_entry(rfkill, &rfkill_list, node) {
mutex_lock(&rfkill->mutex);
rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
@@ -300,7 +301,7 @@
rfkill_global_states[i].current_state =
RFKILL_STATE_SOFT_BLOCKED;
}
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
}
EXPORT_SYMBOL_GPL(rfkill_epo);
@@ -315,10 +316,11 @@
{
int i;
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
+
for (i = 0; i < RFKILL_TYPE_MAX; i++)
__rfkill_switch_all(i, rfkill_global_states[i].default_state);
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
}
EXPORT_SYMBOL_GPL(rfkill_restore_states);
@@ -471,7 +473,7 @@
* Take the global lock to make sure the kernel is not in
* the middle of rfkill_switch_all
*/
- error = mutex_lock_interruptible(&rfkill_mutex);
+ error = mutex_lock_interruptible(&rfkill_global_mutex);
if (error)
return error;
@@ -486,7 +488,7 @@
rfkill->user_claim = claim;
}
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
return error ? error : count;
}
@@ -621,7 +623,7 @@
{
int error;
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
error = rfkill_check_duplicity(rfkill);
if (error < 0)
@@ -642,16 +644,16 @@
error = 0;
unlock_out:
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
return error;
}
static void rfkill_remove_switch(struct rfkill *rfkill)
{
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
list_del_init(&rfkill->node);
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
mutex_lock(&rfkill->mutex);
rfkill_toggle_radio(rfkill, RFKILL_STATE_SOFT_BLOCKED, 1);
@@ -840,7 +842,7 @@
"parameter to rfkill_set_default\n", state, type))
return -EINVAL;
- mutex_lock(&rfkill_mutex);
+ mutex_lock(&rfkill_global_mutex);
if (!test_and_set_bit(type, rfkill_states_lockdflt)) {
rfkill_global_states[type].default_state = state;
@@ -848,7 +850,7 @@
} else
error = -EPERM;
- mutex_unlock(&rfkill_mutex);
+ mutex_unlock(&rfkill_global_mutex);
return error;
}
EXPORT_SYMBOL_GPL(rfkill_set_default);