[PATCH 1/5] video: mb862xxfb: correct fix.smem_len field initialization
From: Anatolij Gustschin <agust@denx.de>
Date: 2011-05-13 15:54:45
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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 --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; }
--
1.7.1