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Commit a9e67a7d authored by Jeevan Shriram's avatar Jeevan Shriram
Browse files

msm: mdss: Align the shared memory length to PAGE_SIZE 



It is possible that userspace modifies the frame buffer
parameters. In such cases ensure to align the frame
buffer size to avoid mmap failures.

Change-Id: I4a002694c26c8fface45d8e274d79d5624cc8158
Signed-off-by: default avatarJeevan Shriram <jshriram@codeaurora.org>
parent 9998424e

drivers/video/msm/mdss/mdss_fb.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -2825,8 +2825,8 @@ static int mdss_fb_set_par(struct fb_info *info) 
	else

	else

		mfd->fbi->fix.line_length = var->xres * var->bits_per_pixel / 8;

		mfd->fbi->fix.line_length = var->xres * var->bits_per_pixel / 8;





	mfd->fbi->fix.smem_len = mfd->fbi->fix.line_length *

	mfd->fbi->fix.smem_len = PAGE_ALIGN(mfd->fbi->fix.line_length *

					mfd->fbi->var.yres_virtual;

					mfd->fbi->var.yres) * mfd->fb_page;





	if (mfd->panel_reconfig || (mfd->fb_imgType != old_imgType)) {

	if (mfd->panel_reconfig || (mfd->fb_imgType != old_imgType)) {

		mdss_fb_blank_sub(FB_BLANK_POWERDOWN, info, mfd->op_enable);

		mdss_fb_blank_sub(FB_BLANK_POWERDOWN, info, mfd->op_enable);