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- Fail if we can't allocate memory

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- Fix a memory leak
 - Also resize the buffer on STATUS_BUFFER_OVERFLOW

svn path=/branches/aicom-network-fixes/; revision=35076
This commit is contained in:
Cameron Gutman 2008-08-03 18:02:10 +00:00
parent fa8410c89c
commit 376173f679
1 changed files with 7 additions and 1 deletions
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8
drivers/network/tcpip/datalink/lan.c
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@ -839,6 +839,8 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
ExAllocatePool(NonPagedPool, sizeof(KEY_BASIC_INFORMATION));
ULONG KbioLength = sizeof(KEY_BASIC_INFORMATION), ResultLength;
if( !Kbio ) return STATUS_INSUFFICIENT_RESOURCES;
RtlInitUnicodeString
(&EnumKeyName, CCS_ROOT L"\\Control\\Class\\" TCPIP_GUID);
@ -847,6 +849,7 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
if( !NT_SUCCESS(Status) ) {
TI_DbgPrint(DEBUG_DATALINK,("Couldn't open Enum key %wZ: %x\n",
&EnumKeyName, Status));
ExFreePool( Kbio );
return Status;
}
@ -854,7 +857,7 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
Status = ZwEnumerateKey( EnumKey, i, KeyBasicInformation,
Kbio, KbioLength, &ResultLength );
if( Status == STATUS_BUFFER_TOO_SMALL ) {
if( Status == STATUS_BUFFER_TOO_SMALL || Status == STATUS_BUFFER_OVERFLOW ) {
ExFreePool( Kbio );
KbioLength = ResultLength;
Kbio = ExAllocatePool( NonPagedPool, KbioLength );
@ -864,6 +867,7 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
if( !NT_SUCCESS(Status) ) {
TI_DbgPrint(DEBUG_DATALINK,("Couldn't enum key child %d\n", i));
ExFreePool( Kbio );
return Status;
}
}
@ -877,6 +881,7 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
( &EnumKeyName, &TargetKeyName, Name, DeviceDesc );
if( NT_SUCCESS(Status) ) {
NtClose( EnumKey );
ExFreePool( Kbio );
return Status;
} else Status = STATUS_SUCCESS;
}
@ -885,6 +890,7 @@ static NTSTATUS FindDeviceDescForAdapter( PUNICODE_STRING Name,
RtlInitUnicodeString( DeviceDesc, L"" );
AppendUnicodeString( DeviceDesc, &TargetKeyName, FALSE );
NtClose( EnumKey );
ExFreePool( Kbio );
return STATUS_UNSUCCESSFUL;
}