[Patch]Documentation/watchdog/src/watchdog-simple.c: improve this code

[WANG Cong]

Make some improvements for Documentation/watchdog/src/watchdog-simple.c.

CC: Wim Van Sebroeck <[EMAIL PROTECTED]>
Signed-off-by: WANG Cong <[EMAIL PROTECTED]>

---
 Documentation/watchdog/src/watchdog-simple.c |   17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

Index: linux-2.6.23-rc9/Documentation/watchdog/src/watchdog-simple.c
===================================================================
--- linux-2.6.23-rc9.orig/Documentation/watchdog/src/watchdog-simple.c
+++ linux-2.6.23-rc9/Documentation/watchdog/src/watchdog-simple.c
@@ -3,15 +3,24 @@
 #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;
 }
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/