Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/infiniband/core/iwcm.c
	drivers/net/chelsio/cxgb2.c
	drivers/net/wireless/bcm43xx/bcm43xx_main.c
	drivers/net/wireless/prism54/islpci_eth.c
	drivers/usb/core/hub.h
	drivers/usb/input/hid-core.c
	net/core/netpoll.c

Fix up merge failures with Linus's head and fix new compilation failures.

Signed-Off-By: David Howells <dhowells@redhat.com>

8 files changed, 63 insertions, 32 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 3da978eec79..8cdd3e72ba5 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1315,9 +1315,8 @@ struct task_struct * __devinit fork_idle(int cpu)
 	struct pt_regs regs;
 
 	task = copy_process(CLONE_VM, 0, idle_regs(&regs), 0, NULL, NULL, 0);
-	if (!task)
-		return ERR_PTR(-ENOMEM);
-	init_idle(task, cpu);
+	if (!IS_ERR(task))
+		init_idle(task, cpu);
 
 	return task;
 }
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 42aa6f1a3f0..a681912bc89 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -231,10 +231,10 @@ fastcall unsigned int __do_IRQ(unsigned int irq)
 		spin_unlock(&desc->lock);
 
 		action_ret = handle_IRQ_event(irq, action);
-
-		spin_lock(&desc->lock);
 		if (!noirqdebug)
 			note_interrupt(irq, desc, action_ret);
+
+		spin_lock(&desc->lock);
 		if (likely(!(desc->status & IRQ_PENDING)))
 			break;
 		desc->status &= ~IRQ_PENDING;
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 9c7e2e4c1fe..543ea2e5ad9 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -147,11 +147,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
 	if (unlikely(irqfixup)) {
 		/* Don't punish working computers */
 		if ((irqfixup == 2 && irq == 0) || action_ret == IRQ_NONE) {
-			int ok;
-
-			spin_unlock(&desc->lock);
-			ok = misrouted_irq(irq);
-			spin_lock(&desc->lock);
+			int ok = misrouted_irq(irq);
 			if (action_ret == IRQ_NONE)
 				desc->irqs_unhandled -= ok;
 		}
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 7dc7a9dad6a..8d2bea09a4e 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -311,14 +311,14 @@ int call_usermodehelper_pipe(char *path, char **argv, char **envp,
 		return 0;
 
 	f = create_write_pipe();
-	if (!f)
-		return -ENOMEM;
+	if (IS_ERR(f))
+		return PTR_ERR(f);
 	*filp = f;
 
 	f = create_read_pipe(f);
-	if (!f) {
+	if (IS_ERR(f)) {
 		free_write_pipe(*filp);
-		return -ENOMEM;
+		return PTR_ERR(f);
 	}
 	sub_info.stdin = f;
 
diff --git a/kernel/module.c b/kernel/module.c
index f0166563c60..45e01cb6010 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1086,22 +1086,35 @@ static int mod_sysfs_setup(struct module *mod,
 		goto out;
 	kobj_set_kset_s(&mod->mkobj, module_subsys);
 	mod->mkobj.mod = mod;
-	err = kobject_register(&mod->mkobj.kobj);
+
+	/* delay uevent until full sysfs population */
+	kobject_init(&mod->mkobj.kobj);
+	err = kobject_add(&mod->mkobj.kobj);
 	if (err)
 		goto out;
 
+	mod->drivers_dir = kobject_add_dir(&mod->mkobj.kobj, "drivers");
+	if (!mod->drivers_dir)
+		goto out_unreg;
+
 	err = module_param_sysfs_setup(mod, kparam, num_params);
 	if (err)
-		goto out_unreg;
+		goto out_unreg_drivers;
 
 	err = module_add_modinfo_attrs(mod);
 	if (err)
-		goto out_unreg;
+		goto out_unreg_param;
 
+	kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD);
 	return 0;
 
+out_unreg_drivers:
+	kobject_unregister(mod->drivers_dir);
+out_unreg_param:
+	module_param_sysfs_remove(mod);
 out_unreg:
-	kobject_unregister(&mod->mkobj.kobj);
+	kobject_del(&mod->mkobj.kobj);
+	kobject_put(&mod->mkobj.kobj);
 out:
 	return err;
 }
@@ -1110,6 +1123,7 @@ static void mod_kobject_remove(struct module *mod)
 {
 	module_remove_modinfo_attrs(mod);
 	module_param_sysfs_remove(mod);
+	kobject_unregister(mod->drivers_dir);
 
 	kobject_unregister(&mod->mkobj.kobj);
 }
@@ -2275,11 +2289,14 @@ void print_modules(void)
 
 void module_add_driver(struct module *mod, struct device_driver *drv)
 {
+	int no_warn;
+
 	if (!mod || !drv)
 		return;
 
-	/* Don't check return code; this call is idempotent */
-	sysfs_create_link(&drv->kobj, &mod->mkobj.kobj, "module");
+	/* Don't check return codes; these calls are idempotent */
+	no_warn = sysfs_create_link(&drv->kobj, &mod->mkobj.kobj, "module");
+	no_warn = sysfs_create_link(mod->drivers_dir, &drv->kobj, drv->name);
 }
 EXPORT_SYMBOL(module_add_driver);
 
@@ -2288,6 +2305,8 @@ void module_remove_driver(struct device_driver *drv)
 	if (!drv)
 		return;
 	sysfs_remove_link(&drv->kobj, "module");
+	if (drv->owner && drv->owner->drivers_dir)
+		sysfs_remove_link(drv->owner->drivers_dir, drv->name);
 }
 EXPORT_SYMBOL(module_remove_driver);
 
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
index 476c3741511..2c6c2bf8551 100644
--- a/kernel/spinlock.c
+++ b/kernel/spinlock.c
@@ -293,6 +293,27 @@ void __lockfunc _spin_lock_nested(spinlock_t *lock, int subclass)
 }
 
 EXPORT_SYMBOL(_spin_lock_nested);
+unsigned long __lockfunc _spin_lock_irqsave_nested(spinlock_t *lock, int subclass)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	preempt_disable();
+	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
+	/*
+	 * On lockdep we dont want the hand-coded irq-enable of
+	 * _raw_spin_lock_flags() code, because lockdep assumes
+	 * that interrupts are not re-enabled during lock-acquire:
+	 */
+#ifdef CONFIG_PROVE_SPIN_LOCKING
+	_raw_spin_lock(lock);
+#else
+	_raw_spin_lock_flags(lock, &flags);
+#endif
+	return flags;
+}
+
+EXPORT_SYMBOL(_spin_lock_irqsave_nested);
 
 #endif
 
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index f45c5e70773..d3d28919d4b 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -77,8 +77,7 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
 	/*
 	 * If new attributes are added, please revisit this allocation
 	 */
-	size = nlmsg_total_size(genlmsg_total_size(size));
-	skb = nlmsg_new(size, GFP_KERNEL);
+	skb = genlmsg_new(size, GFP_KERNEL);
 	if (!skb)
 		return -ENOMEM;
 
@@ -86,13 +85,9 @@ static int prepare_reply(struct genl_info *info, u8 cmd, struct sk_buff **skbp,
 		int seq = get_cpu_var(taskstats_seqnum)++;
 		put_cpu_var(taskstats_seqnum);
 
-		reply = genlmsg_put(skb, 0, seq,
-				family.id, 0, 0,
-				cmd, family.version);
+		reply = genlmsg_put(skb, 0, seq, &family, 0, cmd);
 	} else
-		reply = genlmsg_put(skb, info->snd_pid, info->snd_seq,
-				family.id, 0, 0,
-				cmd, family.version);
+		reply = genlmsg_put_reply(skb, info, &family, 0, cmd);
 	if (reply == NULL) {
 		nlmsg_free(skb);
 		return -EINVAL;
diff --git a/kernel/unwind.c b/kernel/unwind.c
index f7e50d16dbf..ed0a21d4a90 100644
--- a/kernel/unwind.c
+++ b/kernel/unwind.c
@@ -938,8 +938,11 @@ int unwind(struct unwind_frame_info *frame)
 		else {
 			retAddrReg = state.version <= 1 ? *ptr++ : get_uleb128(&ptr, end);
 			/* skip augmentation */
-			if (((const char *)(cie + 2))[1] == 'z')
-				ptr += get_uleb128(&ptr, end);
+			if (((const char *)(cie + 2))[1] == 'z') {
+				uleb128_t augSize = get_uleb128(&ptr, end);
+
+				ptr += augSize;
+			}
 			if (ptr > end
 			   || retAddrReg >= ARRAY_SIZE(reg_info)
 			   || REG_INVALID(retAddrReg)
@@ -963,9 +966,7 @@ int unwind(struct unwind_frame_info *frame)
 	if (cie == NULL || fde == NULL) {
 #ifdef CONFIG_FRAME_POINTER
 		unsigned long top, bottom;
-#endif
 
-#ifdef CONFIG_FRAME_POINTER
 		top = STACK_TOP(frame->task);
 		bottom = STACK_BOTTOM(frame->task);
 # if FRAME_RETADDR_OFFSET < 0