Re: [PATCHv2 01/10] fbdev: ssd1307fb: fix memory address smem_start.
From: Maxime Ripard
Date: Tue Mar 03 2015 - 02:20:18 EST
On Sun, Mar 01, 2015 at 11:27:54PM +0100, Thomas Niederprüm wrote:
> the smem_start pointer of the framebuffer info struct needs to hold the
> physical address rather than the virtual address. This patch fixes a
> driver crash on mmaping the framebuffer memory due to an access to the
> memory address.
> Note however that the memory allocated by kzalloc is not page aligned,
> while the address presented on a mmap call is aligned to the next page
> Signed-off-by: Thomas Niederprüm <niederp@xxxxxxxxxxxxxxxx>
Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
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