V4L/DVB: staging/lirc: fix non-CONFIG_MODULES build horkage

Fix when CONFIG_MODULES is not enabled:

drivers/staging/lirc/lirc_parallel.c:243: error: implicit declaration of function 'module_refcount'
drivers/staging/lirc/lirc_it87.c:150: error: implicit declaration of function 'module_refcount'
drivers/built-in.o: In function `it87_probe':
lirc_it87.c:(.text+0x4079b0): undefined reference to `init_chrdev'
lirc_it87.c:(.text+0x4079cc): undefined reference to `drop_chrdev'
drivers/built-in.o: In function `lirc_it87_exit':
lirc_it87.c:(.exit.text+0x38a5): undefined reference to `drop_chrdev'

Its a quick hack and untested beyond building, since I don't have the
hardware, but it should do the trick.

Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 8 insertions, 5 deletions

diff --git a/drivers/staging/lirc/lirc_it87.c b/drivers/staging/lirc/lirc_it87.c
index 09f36961c6d2..ec11c0e949a0 100644
--- a/drivers/staging/lirc/lirc_it87.c
+++ b/drivers/staging/lirc/lirc_it87.c
@@ -109,6 +109,7 @@ static DECLARE_WAIT_QUEUE_HEAD(lirc_read_queue);
 
 static DEFINE_SPINLOCK(hardware_lock);
 static DEFINE_SPINLOCK(dev_lock);
+static bool device_open;
 
 static int rx_buf[RBUF_LEN];
 unsigned int rx_tail, rx_head;
@@ -147,10 +148,11 @@ static void drop_port(void);
 static int lirc_open(struct inode *inode, struct file *file)
 {
         spin_lock(&dev_lock);
-        if (module_refcount(THIS_MODULE)) {
+        if (device_open) {
                 spin_unlock(&dev_lock);
                 return -EBUSY;
         }
+        device_open = true;
         spin_unlock(&dev_lock);
         return 0;
 }
@@ -158,6 +160,9 @@ static int lirc_open(struct inode *inode, struct file *file)
 
 static int lirc_close(struct inode *inode, struct file *file)
 {
+        spin_lock(&dev_lock);
+        device_open = false;
+        spin_unlock(&dev_lock);
         return 0;
 }
 
@@ -363,7 +368,6 @@ static struct lirc_driver driver = {
 };
 
 
-#ifdef MODULE
 static int init_chrdev(void)
 {
         driver.minor = lirc_register_driver(&driver);
@@ -380,7 +384,6 @@ static void drop_chrdev(void)
 {
         lirc_unregister_driver(driver.minor);
 }
-#endif
 
 
 /* SECTION: Hardware */
diff --git a/drivers/staging/lirc/lirc_parallel.c b/drivers/staging/lirc/lirc_parallel.c
index a1ebd071640f..6da4a8c6ebc3 100644
--- a/drivers/staging/lirc/lirc_parallel.c
+++ b/drivers/staging/lirc/lirc_parallel.c
@@ -240,7 +240,7 @@ static void irq_handler(void *blah)
         unsigned int level, newlevel;
         unsigned int timeout;
 
-        if (!module_refcount(THIS_MODULE))
+        if (!is_open)
                 return;
 
         if (!is_claimed)
@@ -515,7 +515,7 @@ static long lirc_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
 
 static int lirc_open(struct inode *node, struct file *filep)
 {
-        if (module_refcount(THIS_MODULE) || !lirc_claim())
+        if (is_open || !lirc_claim())
                 return -EBUSY;
 
         parport_enable_irq(pport);