Fix the epca driver to permit epca_setup() to be invoked from the kernel cmdline

Fix the epca driver to call epca_setup() if digiepca=xxx is included on the
command line and the epca driver is built in.

epca_setup() used to be called from init/main.c in 2.2 kernels, but somewhere
along the way that call was removed but not replaced.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 13 insertions, 2 deletions

diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 9d9ae1ca2925..456e4ede049f 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -186,7 +186,6 @@ static void pc_throttle(struct tty_struct *tty);
 static void pc_unthrottle(struct tty_struct *tty);
 static int pc_send_break(struct tty_struct *tty, int msec);
 static void setup_empty_event(struct tty_struct *tty, struct channel *ch);
-static void epca_setup(char *, int *);
 
 static int pc_write(struct tty_struct *, const unsigned char *, int);
 static int pc_init(void);
@@ -2513,7 +2512,8 @@ static void setup_empty_event(struct tty_struct *tty, struct channel *ch)
         memoff(ch);
 }
 
-static void epca_setup(char *str, int *ints)
+#ifndef MODULE
+static void __init epca_setup(char *str, int *ints)
 {
         struct board_info board;
         int               index, loop, last;
@@ -2767,6 +2767,17 @@ static void epca_setup(char *str, int *ints)
         num_cards++;
 }
 
+static int __init epca_real_setup(char *str)
+{
+        int ints[11];
+
+        epca_setup(get_options(str, 11, ints), ints);
+        return 1;
+}
+
+__setup("digiepca", epca_real_setup);
+#endif
+
 enum epic_board_types {
         brd_xr = 0,
         brd_xem,