[media] vpif: Fix compilation with allmodconfig

When vpif is compiled as module, those errors happen:

ERROR: "vpif_lock" [drivers/media/platform/davinci/vpif_display.ko] undefined!
ERROR: "vpif_lock" [drivers/media/platform/davinci/vpif_capture.ko] undefined!

That's because vpif_lock symbol is not exported.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index cd08e5248387..3dad5bd7fe0a 100644
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -38,6 +38,7 @@ MODULE_LICENSE("GPL");
 #define VPIF_CH3_MAX_MODES      2
 
 spinlock_t vpif_lock;
+EXPORT_SYMBOL_GPL(vpif_lock);
 
 void __iomem *vpif_base;
 EXPORT_SYMBOL_GPL(vpif_base);