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| author | WANG Cong <xiyou.wangcong@gmail.com> | 2008-04-28 02:13:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 08:58:28 -0700 |
| commit | 626c59f5edb284027bfe25cc15e7de2f532090b5 (patch) | |
| tree | bcc981233e1f44dcb68566f3e63732b6125ad050 /arch/um/os-Linux | |
| parent | 3595726ac349ca9682703535e9a999c4f08c2d80 (diff) | |
| download | linux-3.10-626c59f5edb284027bfe25cc15e7de2f532090b5.tar.gz linux-3.10-626c59f5edb284027bfe25cc15e7de2f532090b5.tar.bz2 linux-3.10-626c59f5edb284027bfe25cc15e7de2f532090b5.zip | |
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 <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/os-Linux')
| -rw-r--r-- | arch/um/os-Linux/start_up.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index b616e15638f..997d01944f9 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'; |