i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

boot_loader: checks whether mapping rsdt header succeeded.

Browse Source 
... and exits in case of failure. Reported by mt in #9895.
This commit is contained in:
Jérôme Duval
2013-07-25 18:52:06 +02:00
parent 6972b91e17
commit 0994532db4
1 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/system/boot/platform/bios_ia32/acpi.cpp
+5 -2
View File
@@ -114,8 +114,11 @@ acpi_check_rsdt(acpi_rsdp* rsdp)
rsdt = (acpi_descriptor_header*)mmu_map_physical_memory( rsdt = (acpi_descriptor_header*)mmu_map_physical_memory(
rsdp->rsdt_address, sizeof(acpi_descriptor_header), rsdp->rsdt_address, sizeof(acpi_descriptor_header),
kDefaultPageFlags); kDefaultPageFlags);
if (rsdt != NULL if (rsdt == NULL) {
&& strncmp(rsdt->signature, ACPI_RSDT_SIGNATURE, 4) != 0) { TRACE(("acpi: couldn't map rsdt header\n"));
return B_ERROR;
}
if (strncmp(rsdt->signature, ACPI_RSDT_SIGNATURE, 4) != 0) {
mmu_free(rsdt, sizeof(acpi_descriptor_header)); mmu_free(rsdt, sizeof(acpi_descriptor_header));
rsdt = NULL; rsdt = NULL;
TRACE(("acpi: invalid root system description table\n")); TRACE(("acpi: invalid root system description table\n"));