[PATCH] sysfs: zero terminate sysfs write buffers
No one should be writing a PAGE_SIZE worth of data to a normal sysfs
file, so properly terminate the buffer.
Thanks to Al Viro for pointing out my supidity here.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 830f76f..f1cb1dd 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -183,7 +183,7 @@
return -ENOMEM;
if (count >= PAGE_SIZE)
- count = PAGE_SIZE;
+ count = PAGE_SIZE - 1;
error = copy_from_user(buffer->page,buf,count);
buffer->needs_read_fill = 1;
return error ? -EFAULT : count;