[PATCH] Char: mxser_new, kill unneeded memsets

mxser_new, kill unneeded memsets

There is no need to re-zero static global variables' memory, hence memsets
doing this are useless.  alloc_tty_struct also zeroes allocated memory:
another candidate for removing.

This fixes also a bug -- global structures are cleaned up after
initialization of some its parts.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/mxser_new.c

@@ -704,7 +704,6 @@ static int __init mxser_init(void)
 		MXSER_VERSION);
 
 	/* Initialize the tty_driver structure */
-	memset(mxvar_sdriver, 0, sizeof(struct tty_driver));
 	mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
 	mxvar_sdriver->name = "ttyM";
 	mxvar_sdriver->major = ttymajor;
@@ -721,12 +720,6 @@ static int __init mxser_init(void)
 	mxvar_sdriver->termios_locked = mxvar_termios_locked;
 
 	mxvar_diagflag = 0;
-	memset(mxser_boards, 0, sizeof(mxser_boards));
-	memset(&mxvar_log, 0, sizeof(struct mxser_log));
-
-	memset(&mxser_msr, 0, sizeof(unsigned char) * (MXSER_PORTS + 1));
-	memset(&mon_data_ext, 0, sizeof(struct mxser_mon_ext));
-	memset(&mxser_set_baud_method, 0, sizeof(int) * (MXSER_PORTS + 1));
 
 	m = 0;
 	/* Start finding ISA boards here */