lkml.org 
[lkml]   [2008]   [Apr]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[Patch] arch/um/os-Linux/sys-i386/task_size.c: improve a bit
From

Improve this code a bit: check sigaction's return value and remove a useless
fflush().

Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>

---

diff --git a/arch/um/os-Linux/sys-i386/task_size.c b/arch/um/os-Linux/sys-i386/task_size.c
index 48d211b..2b5bba5 100644
--- a/arch/um/os-Linux/sys-i386/task_size.c
+++ b/arch/um/os-Linux/sys-i386/task_size.c
@@ -88,7 +88,10 @@ unsigned long os_get_task_size(void)
sa.sa_handler = segfault;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_NODEFER;
- sigaction(SIGSEGV, &sa, &old);
+ if (sigaction(SIGSEGV, &sa, &old)) {
+ perror("os_get_task_size");
+ exit(1);
+ }

if (!page_ok(bottom)) {
fprintf(stderr, "Address 0x%x no good?\n",
@@ -110,11 +113,12 @@ unsigned long os_get_task_size(void)

out:
/* Restore the old SIGSEGV handling */
- sigaction(SIGSEGV, &old, NULL);
-
+ if (sigaction(SIGSEGV, &old, NULL)) {
+ perror("os_get_task_size");
+ exit(1);
+ }
top <<= UM_KERN_PAGE_SHIFT;
printf("0x%x\n", top);
- fflush(stdout);

return top;
}

\
 
 \ /
  Last update: 2008-04-12 11:23    [W:0.248 / U:0.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site