samples: move watchdog example code from Documentation

Move watchdog examples to samples and remove it from Documentation
Makefile. Create a new Makefile to build watchdog. It can be built
from top level directory or from watchdog directory:

Run make -C samples/watchdog or cd samples/watchdog; make

Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

6 files changed, 2 insertions, 33 deletions

diff --git a/Documentation/watchdog/Makefile b/Documentation/watchdog/Makefile
deleted file mode 100644
index 6018f45f2471..000000000000
--- a/Documentation/watchdog/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-subdir-y := src
diff --git a/Documentation/watchdog/src/.gitignore b/Documentation/watchdog/src/.gitignore
deleted file mode 100644
index ff0ebb540333..000000000000
--- a/Documentation/watchdog/src/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-watchdog-simple
diff --git a/Documentation/watchdog/src/Makefile b/Documentation/watchdog/src/Makefile
deleted file mode 100644
index 47be791827d4..000000000000
--- a/Documentation/watchdog/src/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-y := watchdog-simple
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
deleted file mode 100644
index ba45803a2216..000000000000
--- a/Documentation/watchdog/src/watchdog-simple.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-int main(void)
-{
-        int fd = open("/dev/watchdog", O_WRONLY);
-        int ret = 0;
-        if (fd == -1) {
-                perror("watchdog");
-                exit(EXIT_FAILURE);
-        }
-        while (1) {
-                ret = write(fd, "\0", 1);
-                if (ret != 1) {
-                        ret = -1;
-                        break;
-                }
-                sleep(10);
-        }
-        close(fd);
-        return ret;
-}
diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt
index b3a701f48118..0e62ba33b7fb 100644
--- a/Documentation/watchdog/watchdog-api.txt
+++ b/Documentation/watchdog/watchdog-api.txt
@@ -37,7 +37,7 @@ activates as soon as /dev/watchdog is opened and will reboot unless
 the watchdog is pinged within a certain time, this time is called the
 timeout or margin.  The simplest way to ping the watchdog is to write
 some data to the device.  So a very simple watchdog daemon would look
-like this source file:  see Documentation/watchdog/src/watchdog-simple.c
+like this source file:  see samples/watchdog/watchdog-simple.c
 
 A more advanced driver could for example check that a HTTP server is
 still responding before doing the write call to ping the watchdog.
diff --git a/Documentation/watchdog/wdt.txt b/Documentation/watchdog/wdt.txt
index 061c2e35384f..ed2f0b860869 100644
--- a/Documentation/watchdog/wdt.txt
+++ b/Documentation/watchdog/wdt.txt
@@ -47,4 +47,4 @@ The external event interfaces on the WDT boards are not currently supported.
 Minor numbers are however allocated for it.
 
 
-Example Watchdog Driver:  see Documentation/watchdog/src/watchdog-simple.c
+Example Watchdog Driver:  see samples/watchdog/watchdog-simple.c