Kernel: Fix unaligned access in xHCI controller initialization

2024-11-21 13:46:09 +02:00 · 2024-11-21 13:46:09 +02:00 · 5750f87396
parent 1253e2a458
commit 5750f87396
1 changed files with 7 additions and 1 deletions
--- a/kernel/kernel/USB/XHCI/Controller.cpp
+++ b/kernel/kernel/USB/XHCI/Controller.cpp
@ -159,7 +159,13 @@ namespace Kernel
 				{
 					auto& protocol = reinterpret_cast<volatile XHCI::SupportedPrococolCap&>(ext_cap);

-					if (protocol.name_string != *reinterpret_cast<const uint32_t*>("USB "))
+					const uint32_t target_name_string {
+						('U' <<  0) |
+						('S' <<  8) |
+						('B' << 16) |
+						(' ' << 24)
+					};
+					if (protocol.name_string != target_name_string)
 					{
 						dwarnln("Invalid port protocol name string");
 						return BAN::Error::from_errno(EFAULT);