Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-wat…

…chdog

* 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

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;
 }

drivers/watchdog/Kconfig

@@ -343,11 +343,12 @@ config IBMASR
 	  module will be called ibmasr.
 
 config WAFER_WDT
-	tristate "ICP Wafer 5823 Single Board Computer Watchdog"
+	tristate "ICP Single Board Computer Watchdog Timer"
 	depends on X86
 	help
-	  This is a driver for the hardware watchdog on the ICP Wafer 5823
-	  Single Board Computer (and probably other similar models).
+	  This is a driver for the hardware watchdog on the ICP Single
+	  Board Computer. This driver is working on (at least) the following
+	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called wafer5823wdt.
@@ -609,6 +610,12 @@ config WDT_RM9K_GPI
 	  To compile this driver as a module, choose M here: the
 	  module will be called rm9k_wdt.
 
+config AR7_WDT
+	tristate "TI AR7 Watchdog Timer"
+	depends on AR7
+	help
+	  Hardware driver for the TI AR7 Watchdog Timer.
+
 # PARISC Architecture
 
 # POWERPC Architecture

drivers/watchdog/Makefile

@@ -90,6 +90,7 @@ obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o
 obj-$(CONFIG_INDYDOG) += indydog.o
 obj-$(CONFIG_WDT_MTX1)	+= mtx-1_wdt.o
 obj-$(CONFIG_WDT_RM9K_GPI) += rm9k_wdt.o
+obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
 
 # PARISC Architecture