Merge tag 'imx-drm-fixes-2021-08-18' of git://git.pengutronix.de/pza/linux into drm...

[linux-2.6-microblaze.git] / drivers / firmware / efi / libstub / randomalloc.c

diff --git a/drivers/firmware/efi/libstub/randomalloc.c b/drivers/firmware/efi/libstub/randomalloc.c
index a408df4..724155b 100644 (file)
--- a/drivers/firmware/efi/libstub/randomalloc.c
+++ b/drivers/firmware/efi/libstub/randomalloc.c
@@ -30,6 +30,8 @@ static unsigned long get_entry_num_slots(efi_memory_desc_t *md,
 
        region_end = min(md->phys_addr + md->num_pages * EFI_PAGE_SIZE - 1,
                         (u64)ULONG_MAX);
+       if (region_end < size)
+               return 0;
 
        first_slot = round_up(md->phys_addr, align);
        last_slot = round_down(region_end - size + 1, align);