From c0a9290ecf0dbb89958cb3a3f78964015a7de402 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Mon, 4 Feb 2008 22:30:41 -0800 Subject: uml: const and other tidying This patch also does some improvements for uml code. Improvements include dropping unnecessary cast, killing some unnecessary code and still some constifying for pointers etc.. Signed-off-by: WANG Cong Signed-off-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/os-Linux/drivers/tuntap_user.c | 2 +- arch/um/os-Linux/mem.c | 7 ++++--- arch/um/os-Linux/sigio.c | 2 +- 3 files changed, 6 insertions(+), 5 deletions(-) (limited to 'arch/um/os-Linux') diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index 1037a3b6386..1d847959d1d 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -148,7 +148,7 @@ static int tuntap_open(void *data) memset(&ifr, 0, sizeof(ifr)); ifr.ifr_flags = IFF_TAP | IFF_NO_PI; strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name)); - if (ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0) { + if (ioctl(pri->fd, TUNSETIFF, &ifr) < 0) { err = -errno; printk(UM_KERN_ERR "TUNSETIFF failed, errno = %d\n", errno); diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c index c3b736adc1d..9674ed1bef2 100644 --- a/arch/um/os-Linux/mem.c +++ b/arch/um/os-Linux/mem.c @@ -30,7 +30,7 @@ static char *tempdir = NULL; static void __init find_tempdir(void) { - char *dirs[] = { "TMP", "TEMP", "TMPDIR", NULL }; + const char *dirs[] = { "TMP", "TEMP", "TMPDIR", NULL }; int i; char *dir = NULL; @@ -59,9 +59,10 @@ static void __init find_tempdir(void) * read the file as needed. If there's an error, -errno is returned; * if the end of the file is reached, 0 is returned. */ -static int next(int fd, char *buf, int size, char c) +static int next(int fd, char *buf, size_t size, char c) { - int n, len; + ssize_t n; + size_t len; char *ptr; while((ptr = strchr(buf, c)) == NULL){ diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index dc03e9cccb6..7243f573377 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -407,7 +407,7 @@ static int async_pty(int master, int slave) if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)) return -errno; - return(0); + return 0; } static void __init check_one_sigio(void (*proc)(int, int)) -- cgit v1.2.3