[CG6]: fix memory size detection

This patch fixes memory size detection on the CG6 card.
The 1MB TGX card has dblbuf property set to 0.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 87c747123538..ee9046db9c7d 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -677,6 +677,7 @@ static int __devinit cg6_probe(struct of_device *op, const struct of_device_id *
         struct fb_info *info;
         struct cg6_par *par;
         int linebytes, err;
+        int dblbuf;
 
         info = framebuffer_alloc(sizeof(struct cg6_par), &op->dev);
 
@@ -698,7 +699,9 @@ static int __devinit cg6_probe(struct of_device *op, const struct of_device_id *
         linebytes = of_getintprop_default(dp, "linebytes",
                                           info->var.xres);
         par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
-        if (of_find_property(dp, "dblbuf", NULL))
+
+        dblbuf = of_getintprop_default(dp, "dblbuf", 0);
+        if (dblbuf)
                 par->fbsize *= 4;
 
         par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,