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Date: Sat, 6 Oct 2007 11:17:13 +0800 From: WANG Cong <xiyou.wangcong@...il.com> To: LKML <linux-kernel@...r.kernel.org> Cc: Wim Van Sebroeck <wim@...ana.be>, Andrew Morton <akpm@...l.org> Subject: [Patch]Documentation/watchdog/src/watchdog-simple.c: improve this code Make some improvements for Documentation/watchdog/src/watchdog-simple.c. CC: Wim Van Sebroeck <wim@...ana.be> Signed-off-by: WANG Cong <xiyou.wangcong@...il.com> --- 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 majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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