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Commit dcdf2f7e authored by Anatolij Gustschin's avatar Anatolij Gustschin
Browse files

video: mb862xxfb: correct fix.smem_len field initialization 



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: default avatarAnatolij Gustschin <agust@denx.de>
parent af1ce6b2

drivers/video/mb862xx/mb862xxfb.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

}