V4L/DVB (8727): V4L1: make PMS not autoprobe when builtin.

The old Mediavision Pro Movie Studio legacy ISA V4L1 driver was found to
hang the boot during Ingo Molnar's testing of randconfig kernels.  Have it
require a "pms.enable=1" kernel parameter to enable the driver when
builtin which avoids such problems.

This is a deprecated and, very likely, unused driver.  Nothing changes
modular behaviour moreover.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c
index 00425d7436569e8081e525892fbf8b7f464b1683..ede522a33d7d06a032ab39e6fb4b9f8c00792155 100644 (file)
--- a/drivers/media/video/pms.c
+++ b/drivers/media/video/pms.c
@@ -1019,10 +1019,22 @@ static int init_mediavision(void)
  *     Initialization and module stuff
  */
 
+#ifndef MODULE
+static int enable;
+module_param(enable, int, 0);
+#endif
+
 static int __init init_pms_cards(void)
 {
        printk(KERN_INFO "Mediavision Pro Movie Studio driver 0.02\n");
 
+#ifndef MODULE
+       if (!enable) {
+               printk(KERN_INFO "Not enabled\n");
+               return -ENODEV;
+       }
+#endif
+
        data_port = io_port +1;
 
        if(init_mediavision())