X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Frelay.c;h=61134eb7a0c8a9b2d2e0557b33ff4fbd7ff96f31;hb=af258f516b3e4e214121f5d6d53cab32ce0d8010;hp=a615a8f513fc890eaa1a11a34ae5e08c78895bba;hpb=bc06cffdec85d487c77109dffcd2f285bdc502d3;p=pandora-kernel.git

diff --git a/kernel/relay.c b/kernel/relay.c
index a615a8f513fc..61134eb7a0c8 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -1,7 +1,7 @@
 /*
  * Public API and common code for kernel->userspace relay file support.
  *
- * See Documentation/filesystems/relayfs.txt for an overview of relayfs.
+ * See Documentation/filesystems/relay.txt for an overview.
  *
  * Copyright (C) 2002-2005 - Tom Zanussi (zanussi@us.ibm.com), IBM Corp
  * Copyright (C) 1999-2005 - Karim Yaghmour (karim@opersys.com)
@@ -80,7 +80,7 @@ static struct vm_operations_struct relay_file_mmap_ops = {
  *
  *	Caller should already have grabbed mmap_sem.
  */
-int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma)
+static int relay_mmap_buf(struct rchan_buf *buf, struct vm_area_struct *vma)
 {
 	unsigned long length = vma->vm_end - vma->vm_start;
 	struct file *filp = vma->vm_file;
@@ -145,7 +145,7 @@ depopulate:
  *
  *	Returns channel buffer if successful, %NULL otherwise.
  */
-struct rchan_buf *relay_create_buf(struct rchan *chan)
+static struct rchan_buf *relay_create_buf(struct rchan *chan)
 {
 	struct rchan_buf *buf = kzalloc(sizeof(struct rchan_buf), GFP_KERNEL);
 	if (!buf)
@@ -175,7 +175,7 @@ free_buf:
  *
  *	Should only be called from kref_put().
  */
-void relay_destroy_channel(struct kref *kref)
+static void relay_destroy_channel(struct kref *kref)
 {
 	struct rchan *chan = container_of(kref, struct rchan, kref);
 	kfree(chan);
@@ -185,7 +185,7 @@ void relay_destroy_channel(struct kref *kref)
  *	relay_destroy_buf - destroy an rchan_buf struct and associated buffer
  *	@buf: the buffer struct
  */
-void relay_destroy_buf(struct rchan_buf *buf)
+static void relay_destroy_buf(struct rchan_buf *buf)
 {
 	struct rchan *chan = buf->chan;
 	unsigned int i;
@@ -210,7 +210,7 @@ void relay_destroy_buf(struct rchan_buf *buf)
  *	rchan_buf_struct and the channel buffer.  Should only be called from
  *	kref_put().
  */
-void relay_remove_buf(struct kref *kref)
+static void relay_remove_buf(struct kref *kref)
 {
 	struct rchan_buf *buf = container_of(kref, struct rchan_buf, kref);
 	buf->chan->cb->remove_buf_file(buf->dentry);
@@ -223,11 +223,10 @@ void relay_remove_buf(struct kref *kref)
  *
  *	Returns 1 if the buffer is empty, 0 otherwise.
  */
-int relay_buf_empty(struct rchan_buf *buf)
+static int relay_buf_empty(struct rchan_buf *buf)
 {
 	return (buf->subbufs_produced - buf->subbufs_consumed) ? 0 : 1;
 }
-EXPORT_SYMBOL_GPL(relay_buf_empty);
 
 /**
  *	relay_buf_full - boolean, is the channel buffer full?
@@ -371,7 +370,7 @@ void relay_reset(struct rchan *chan)
 	if (!chan)
 		return;
 
- 	if (chan->is_global && chan->buf[0]) {
+	if (chan->is_global && chan->buf[0]) {
 		__relay_reset(chan->buf[0], 0);
 		return;
 	}
@@ -427,6 +426,7 @@ static struct rchan_buf *relay_open_buf(struct rchan *chan, unsigned int cpu)
 
 free_buf:
  	relay_destroy_buf(buf);
+ 	buf = NULL;
 free_name:
  	kfree(tmpname);
 end:
@@ -850,13 +850,13 @@ static int relay_file_read_avail(struct rchan_buf *buf, size_t read_pos)
 		buf->subbufs_consumed = consumed;
 		buf->bytes_consumed = 0;
 	}
-	
+
 	produced = (produced % n_subbufs) * subbuf_size + buf->offset;
 	consumed = (consumed % n_subbufs) * subbuf_size + buf->bytes_consumed;
 
 	if (consumed > produced)
 		produced += n_subbufs * subbuf_size;
-	
+
 	if (consumed == produced)
 		return 0;