Arvind Sankar a5f30925cc x86/sysfb: Fix check for bad VRAM size
[ Upstream commit dacc9092336be20b01642afe1a51720b31f60369 ]

When checking whether the reported lfb_size makes sense, the height
* stride result is page-aligned before seeing whether it exceeds the
reported size.

This doesn't work if height * stride is not an exact number of pages.
For example, as reported in the kernel bugzilla below, an 800x600x32 EFI
framebuffer gets skipped because of this.

Move the PAGE_ALIGN to after the check vs size.

Reported-by: Christopher Head <chead@chead.ca>
Tested-by: Christopher Head <chead@chead.ca>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206051
Link: https://lkml.kernel.org/r/20200107230410.2291947-1-nivedita@alum.mit.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-28 15:42:21 +01:00
..
2019-02-20 10:18:32 +01:00
2020-02-28 15:42:20 +01:00
2019-12-05 15:34:56 +01:00
2019-12-21 10:42:30 +01:00