Merge commit 'v2.6.29-rc4' into perfcounters/core

Conflicts:
	arch/x86/kernel/setup_percpu.c
	arch/x86/mm/fault.c
	drivers/acpi/processor_idle.c
	kernel/irq/handle.c

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 66f6e58a7e4b..f2c478c3424e 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -63,6 +63,9 @@ read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
         int count = min_t(size_t, bytes, PAGE_SIZE);
         char *temp;
 
+        if (!bytes)
+                return 0;
+
         if (size) {
                 if (offs > size)
                         return 0;
@@ -131,6 +134,9 @@ static ssize_t write(struct file *file, const char __user *userbuf,
         int count = min_t(size_t, bytes, PAGE_SIZE);
         char *temp;
 
+        if (!bytes)
+                return 0;
+
         if (size) {
                 if (offs > size)
                         return 0;