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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-23 16:36:30 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-23 16:36:30 -0700
commitaf76bbabbdf5cebea6a3863446f9f74b469c4bdc (patch)
tree04f171157bd4c43a7fff841f310cb543ec31966c /Documentation
parent2024da603978882d102a34d47828a205fffb338e (diff)
parent06063e26bc3ab62aa7aca874c6ce9e7638673838 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] Documentation/watchdog/src/watchdog-simple.c: improve this code [WATCHDOG] AR7: watchdog timer [WATCHDOG] Linux kernel IPC SBC Watchdog Timer driver
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/watchdog/src/watchdog-simple.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
index 47801bc7e74..4cf72f3fa8e 100644
--- a/Documentation/watchdog/src/watchdog-simple.c
+++ b/Documentation/watchdog/src/watchdog-simple.c
@@ -3,15 +3,25 @@
#include <unistd.h>
#include <fcntl.h>
-int main(int argc, const char *argv[]) {
+int main(void)
+{
int fd = open("/dev/watchdog", O_WRONLY);
+ int ret = 0;
if (fd == -1) {
perror("watchdog");
- exit(1);
+ exit(EXIT_FAILURE);
}
while (1) {
- write(fd, "\0", 1);
- fsync(fd);
+ ret = write(fd, "\0", 1);
+ if (ret != 1) {
+ ret = -1;
+ break;
+ }
+ ret = fsync(fd);
+ if (ret)
+ break;
sleep(10);
}
+ close(fd);
+ return ret;
}