From 626c59f5edb284027bfe25cc15e7de2f532090b5 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Mon, 28 Apr 2008 02:13:53 -0700 Subject: arch/um/os-Linux/start_up.c: various improvements. - lets ptrace_child become void - adds checking for the return value of change_sig - moves errors info into stderr instead of stdout. Cc: Jeff Dike Signed-off-by: WANG Cong Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/os-Linux/start_up.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'arch/um/os-Linux') diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index b616e15638fb..997d01944f91 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -25,15 +25,15 @@ #include "registers.h" #include "skas_ptrace.h" -static int ptrace_child(void) +static void ptrace_child(void) { int ret; /* Calling os_getpid because some libcs cached getpid incorrectly */ int pid = os_getpid(), ppid = getppid(); int sc_result; - change_sig(SIGWINCH, 0); - if (ptrace(PTRACE_TRACEME, 0, 0, 0) < 0) { + if (change_sig(SIGWINCH, 0) < 0 || + ptrace(PTRACE_TRACEME, 0, 0, 0) < 0) { perror("ptrace"); kill(pid, SIGKILL); } @@ -75,9 +75,8 @@ static void fatal(char *fmt, ...) va_list list; va_start(list, fmt); - vprintf(fmt, list); + vfprintf(stderr, fmt, list); va_end(list); - fflush(stdout); exit(1); } @@ -87,9 +86,8 @@ static void non_fatal(char *fmt, ...) va_list list; va_start(list, fmt); - vprintf(fmt, list); + vfprintf(stderr, fmt, list); va_end(list); - fflush(stdout); } static int start_ptraced_child(void) @@ -495,7 +493,7 @@ int __init parse_iomem(char *str, int *add) driver = str; file = strchr(str,','); if (file == NULL) { - printf("parse_iomem : failed to parse iomem\n"); + fprintf(stderr, "parse_iomem : failed to parse iomem\n"); goto out; } *file = '\0'; -- cgit v1.2.3