vivid: Add an option to configure the maximum number of devices

Commit Message

Ezequiel Garcia Sept. 28, 2015, 10:27 p.m. UTC

The vivid driver currently has a hard-coded limit of 64 devices,
however there's nothing that prevents the creation of even more devices.
This commit adds a new driver option (which defaults to 64) to
allow this maximum number to be configurable.

Signed-off-by: Ezequiel Garcia <[e-mail]>
---
 drivers/media/platform/vivid/Kconfig      | 8 ++++++++
 drivers/media/platform/vivid/vivid-core.c | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/media/platform/vivid/Kconfig b/drivers/media/platform/vivid/Kconfig
index c3090932f06d..0885e93ad436 100644
--- a/drivers/media/platform/vivid/Kconfig
+++ b/drivers/media/platform/vivid/Kconfig
@@ -20,3 +20,11 @@  config VIDEO_VIVID
 
 	  Say Y here if you want to test video apps or debug V4L devices.
 	  When in doubt, say N.
+
+config VIDEO_VIVID_MAX_DEVS
+	int "Maximum number of devices"
+	depends on VIDEO_VIVID
+	default "64"
+	---help---
+	  This allows you to specify the maximum number of devices supported
+	  by the vivid driver.
diff --git a/drivers/media/platform/vivid/vivid-core.c b/drivers/media/platform/vivid/vivid-core.c
index c63e798e10b7..b30c00ed5f38 100644
--- a/drivers/media/platform/vivid/vivid-core.c
+++ b/drivers/media/platform/vivid/vivid-core.c
@@ -51,7 +51,7 @@ 
 #define VIVID_MODULE_NAME "vivid"
 
 /* The maximum number of vivid devices */
-#define VIVID_MAX_DEVS 64
+#define VIVID_MAX_DEVS CONFIG_VIDEO_VIVID_MAX_DEVS
 
 MODULE_DESCRIPTION("Virtual Video Test Driver");
 MODULE_AUTHOR("Hans Verkuil");