[PATCH] char: static functions and integer as NULL pointer fixes in epca.c

[Harvey Harrison <harvey.harrison@gmail.com>]

drivers/char/epca.c:926:28: warning: Using plain integer as NULL pointer
drivers/char/epca.c:1841:2: warning: Using plain integer as NULL pointer

Forward declarations were already marked static, mark the definitions too.
drivers/char/epca.c:2493:6: warning: symbol 'digi_send_break' was not declared. Should it be static?
drivers/char/epca.c:2881:12: warning: symbol 'init_PCI' was not declared. Should it be static?

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
 drivers/char/epca.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index ffd747c..b034b37 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -923,7 +923,7 @@ static int pc_open(struct tty_struct *tty, struct file * filp)
 		return(-ENODEV);
 	}
 
-	if ((bc = ch->brdchan) == 0) {
+	if ((bc = ch->brdchan) == NULL) {
 		tty->driver_data = NULL;
 		return -ENODEV;
 	}
@@ -1838,7 +1838,7 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch)
 	unsigned mval, hflow, cflag, iflag;
 
 	bc = ch->brdchan;
-	epcaassert(bc !=0, "bc out of range");
+	epcaassert(bc != NULL, "bc out of range");
 
 	assertgwinon(ch);
 	ts = tty->termios;
@@ -2490,7 +2490,7 @@ static void pc_unthrottle(struct tty_struct *tty)
 	}
 }
 
-void digi_send_break(struct channel *ch, int msec)
+static void digi_send_break(struct channel *ch, int msec)
 {
 	unsigned long flags;
 
@@ -2878,7 +2878,7 @@ static struct pci_device_id epca_pci_tbl[] = {
 
 MODULE_DEVICE_TABLE(pci, epca_pci_tbl);
 
-int __init init_PCI (void)
+static int __init init_PCI (void)
 {
 	memset (&epca_driver, 0, sizeof (epca_driver));
 	epca_driver.name = "epca";
-- 
1.5.4.2.200.g99e75