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[PATCH] i2Output always takes kernel data now

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro 2006-10-11 17:45:47 +01:00 committed by Linus Torvalds
parent cff52daffa
commit f061c5847b
3 changed files with 6 additions and 11 deletions
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11
drivers/char/ip2/i2lib.c
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@ -1007,7 +1007,7 @@ i2InputAvailable(i2ChanStrPtr pCh)
// 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 *pSource, int count, int user )
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 *pSource, int count, int user )
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;

2
drivers/char/ip2/i2lib.h
View file

@ -332,7 +332,7 @@ static int i2QueueCommands(int, i2ChanStrPtr, int, int, cmdSyntaxPtr,...);
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);

4
drivers/char/ip2/ip2main.c
View file

@ -1704,7 +1704,7 @@ ip2_write( PTTY tty, const unsigned char *pData, int count)
/* 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 );
}