From 59e3f74a2e1a0806350e1ffd77a528821d1f2be3 Mon Sep 17 00:00:00 2001 From: Anton Kling Date: Fri, 26 Apr 2024 16:06:35 +0200 Subject: Kernel: More out of memory condition checks --- kernel/drivers/vbe.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'kernel/drivers/vbe.c') diff --git a/kernel/drivers/vbe.c b/kernel/drivers/vbe.c index 9c6fa4a..e67a3d9 100644 --- a/kernel/drivers/vbe.c +++ b/kernel/drivers/vbe.c @@ -24,7 +24,7 @@ struct DISPLAY_INFO { struct DISPLAY_INFO vbe_info; -void display_driver_init(multiboot_info_t *mbi) { +int display_driver_init(multiboot_info_t *mbi) { assert(CHECK_FLAG(mbi->flags, 12)); framebuffer_width = mbi->framebuffer_width; framebuffer_height = mbi->framebuffer_height; @@ -37,10 +37,14 @@ void display_driver_init(multiboot_info_t *mbi) { framebuffer_physical = mbi->framebuffer_addr; framebuffer = mmu_map_frames((void *)(u32)mbi->framebuffer_addr, framebuffer_size); + if(!framebuffer) { + return 0; + } vbe_info.width = framebuffer_width; vbe_info.height = framebuffer_height; vbe_info.bpp = mbi->framebuffer_bpp; + return 1; } vfs_vm_object_t *vbe_get_vm_object(u64 length, u64 offset, vfs_fd_t *fd) { -- cgit v1.2.3