VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: WANG Cong <xiyou.wangcong@gmail.com> 2008-04-28 02:13:57 -0700 committer: Linus Torvalds <torvalds@linux-foundation.org> 2008-04-28 08:58:28 -0700 commit: 4415d8a5aaec2008833e1c474b38627c0bc738ca parent: 074a0db8e17ae271736148809c5f9d47dec2d993
Commit Summary:
arch/um/os-Linux/sys-i386/task_size.c: improve a bit
Diffstat:
1 file changed, 8 insertions, 4 deletions
diff --git a/arch/um/os-Linux/sys-i386/task_size.c b/arch/um/os-Linux/sys-i386/task_size.c
index 48d211b3d9a1..ccb49b0aff59 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;
 }