[PATCH] i2Output always takes kernel data now

From: Al Viro
Date: Wed Oct 11 2006 - 12:46:15 EST


Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
drivers/char/ip2/i2lib.c | 11 +++--------
drivers/char/ip2/i2lib.h | 2 +-
drivers/char/ip2/ip2main.c | 4 ++--
3 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
index fc944d3..54d93f0 100644
--- a/drivers/char/ip2/i2lib.c
+++ b/drivers/char/ip2/i2lib.c
@@ -1007,7 +1007,7 @@ #endif
// applications that one cannot break out of.
//******************************************************************************
static int
-i2Output(i2ChanStrPtr pCh, const char *pSource, int count, int user )
+i2Output(i2ChanStrPtr pCh, const char *pSource, int count)
{
i2eBordStrPtr pB;
unsigned char *pInsert;
@@ -1020,7 +1020,7 @@ i2Output(i2ChanStrPtr pCh, const char *p

int bailout = 10;

- ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, user );
+ ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, 0 );

// Ensure channel structure seems real
if ( !i2Validate ( pCh ) )
@@ -1087,12 +1087,7 @@ i2Output(i2ChanStrPtr pCh, const char *p
DATA_COUNT_OF(pInsert) = amountToMove;

// Move the data
- if ( user ) {
- rc = copy_from_user((char*)(DATA_OF(pInsert)), pSource,
- amountToMove );
- } else {
- memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
- }
+ memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
// Adjust pointers and indices
pSource += amountToMove;
pCh->Obuf_char_count += amountToMove;
diff --git a/drivers/char/ip2/i2lib.h b/drivers/char/ip2/i2lib.h
index 952e113..e559e9b 100644
--- a/drivers/char/ip2/i2lib.h
+++ b/drivers/char/ip2/i2lib.h
@@ -332,7 +332,7 @@ static int i2QueueCommands(int, i2ChanS
static int i2GetStatus(i2ChanStrPtr, int);
static int i2Input(i2ChanStrPtr);
static int i2InputFlush(i2ChanStrPtr);
-static int i2Output(i2ChanStrPtr, const char *, int, int);
+static int i2Output(i2ChanStrPtr, const char *, int);
static int i2OutputFree(i2ChanStrPtr);
static int i2ServiceBoard(i2eBordStrPtr);
static void i2DrainOutput(i2ChanStrPtr, int);
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 858ba54..a3f32d4 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -1704,7 +1704,7 @@ ip2_write( PTTY tty, const unsigned char

/* This is the actual move bit. Make sure it does what we need!!!!! */
WRITE_LOCK_IRQSAVE(&pCh->Pbuf_spinlock,flags);
- bytesSent = i2Output( pCh, pData, count, 0 );
+ bytesSent = i2Output( pCh, pData, count);
WRITE_UNLOCK_IRQRESTORE(&pCh->Pbuf_spinlock,flags);

ip2trace (CHANN, ITRC_WRITE, ITRC_RETURN, 1, bytesSent );
@@ -1764,7 +1764,7 @@ ip2_flush_chars( PTTY tty )
//
// We may need to restart i2Output if it does not fullfill this request
//
- strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff, 0 );
+ strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff);
if ( strip != pCh->Pbuf_stuff ) {
memmove( pCh->Pbuf, &pCh->Pbuf[strip], pCh->Pbuf_stuff - strip );
}
--
1.4.2.GIT


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