diff mbox

[1/5] video: mb862xxfb: correct fix.smem_len field initialization

Message ID 1305302089-7666-2-git-send-email-agust@denx.de (mailing list archive)
State New, archived
Headers show

Commit Message

Anatolij Gustschin May 13, 2011, 3:54 p.m. UTC 
Initialize smem_len field to the actual frame buffer size and
not to the whole video RAM size. This prevents overwriting
other video memory (which could be used by other layers, cursors
or accelerated drivers) by frame buffer applications relying on
fix.smem_len.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 drivers/video/mb862xx/mb862xxfb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/drivers/video/mb862xx/mb862xxfb.c b/drivers/video/mb862xx/mb862xxfb.c
index c76e663..8257958 100644
--- a/drivers/video/mb862xx/mb862xxfb.c
+++ b/drivers/video/mb862xx/mb862xxfb.c
@@ -336,7 +336,6 @@  static int mb862xxfb_init_fbinfo(struct fb_info *fbi)
 
 	strcpy(fbi->fix.id, DRV_NAME);
 	fbi->fix.smem_start = (unsigned long)par->fb_base_phys;
-	fbi->fix.smem_len = par->mapped_vram;
 	fbi->fix.mmio_start = (unsigned long)par->mmio_base_phys;
 	fbi->fix.mmio_len = par->mmio_len;
 	fbi->fix.accel = FB_ACCEL_NONE;
@@ -420,6 +419,7 @@  static int mb862xxfb_init_fbinfo(struct fb_info *fbi)
 			 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 	fbi->fix.line_length = (fbi->var.xres_virtual *
 				fbi->var.bits_per_pixel) / 8;
+	fbi->fix.smem_len = fbi->fix.line_length * fbi->var.yres_virtual;
 	return 0;
 }