drivers/net/hamradio: fix warning: format not a string literal and no ...

Impact: Use 'static const char[]' instead of 'static char[]' and while
being at it fix an issue in 'mkiss_init_driver', where in case of an
error the status code was not passed to printk.

Fix this warnings:
  drivers/net/hamradio/6pack.c: In function 'sixpack_init_driver':
  drivers/net/hamradio/6pack.c:802: warning: format not a string literal and no format arguments
  drivers/net/hamradio/bpqether.c: In function 'bpq_init_driver':
  drivers/net/hamradio/bpqether.c:609: warning: format not a string literal and no format arguments
  drivers/net/hamradio/mkiss.c: In function 'mkiss_init_driver':
  drivers/net/hamradio/mkiss.c:988: warning: format not a string literal and no format arguments
  drivers/net/hamradio/mkiss.c:991: warning: format not a string literal and no format arguments
  drivers/net/hamradio/scc.c: In function 'scc_init_driver':
  drivers/net/hamradio/scc.c:2109: warning: format not a string literal and no format arguments
  drivers/net/hamradio/yam.c: In function 'yam_init_driver':
  drivers/net/hamradio/yam.c:1094: warning: format not a string literal and no format arguments
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/hamradio/6pack.c

@@ -790,9 +790,9 @@ static struct tty_ldisc_ops sp_ldisc = {
 
 /* Initialize 6pack control device -- register 6pack line discipline */
 
-static char msg_banner[]  __initdata = KERN_INFO \
+static const char msg_banner[]  __initdata = KERN_INFO \
 	"AX.25: 6pack driver, " SIXPACK_VERSION "\n";
-static char msg_regfail[] __initdata = KERN_ERR  \
+static const char msg_regfail[] __initdata = KERN_ERR  \
 	"6pack: can't register line discipline (err = %d)\n";
 
 static int __init sixpack_init_driver(void)

drivers/net/hamradio/bpqether.c

@@ -87,7 +87,8 @@
 
 #include <linux/bpqether.h>
 
-static char banner[] __initdata = KERN_INFO "AX.25: bpqether driver version 004\n";
+static const char banner[] __initdata = KERN_INFO \
+	"AX.25: bpqether driver version 004\n";
 
 static char bcast_addr[6]={0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
 

drivers/net/hamradio/mkiss.c

@@ -976,9 +976,9 @@ static struct tty_ldisc_ops ax_ldisc = {
 	.write_wakeup	= mkiss_write_wakeup
 };
 
-static char banner[] __initdata = KERN_INFO \
+static const char banner[] __initdata = KERN_INFO \
 	"mkiss: AX.25 Multikiss, Hans Albas PE1AYX\n";
-static char msg_regfail[] __initdata = KERN_ERR \
+static const char msg_regfail[] __initdata = KERN_ERR \
 	"mkiss: can't register line discipline (err = %d)\n";
 
 static int __init mkiss_init_driver(void)
@@ -987,8 +987,9 @@ static int __init mkiss_init_driver(void)
 
 	printk(banner);
 
-	if ((status = tty_register_ldisc(N_AX25, &ax_ldisc)) != 0)
-		printk(msg_regfail);
+	status = tty_register_ldisc(N_AX25, &ax_ldisc);
+	if (status != 0)
+		printk(msg_regfail, status);
 
 	return status;
 }

drivers/net/hamradio/scc.c

@@ -184,7 +184,8 @@
 
 #include "z8530.h"
 
-static char banner[] __initdata = KERN_INFO "AX.25: Z8530 SCC driver version "VERSION".dl1bke\n";
+static const char banner[] __initdata = KERN_INFO \
+	"AX.25: Z8530 SCC driver version "VERSION".dl1bke\n";
 
 static void t_dwait(unsigned long);
 static void t_txdelay(unsigned long);

drivers/net/hamradio/yam.c

@@ -77,7 +77,8 @@
 /* --------------------------------------------------------------------- */
 
 static const char yam_drvname[] = "yam";
-static char yam_drvinfo[] __initdata = KERN_INFO "YAM driver version 0.8 by F1OAT/F6FBB\n";
+static const char yam_drvinfo[] __initdata = KERN_INFO \
+	"YAM driver version 0.8 by F1OAT/F6FBB\n";
 
 /* --------------------------------------------------------------------- */