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Abort the request instead of crashing when out of memory.

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This commit is contained in:
Michael Lotz 2011-12-03 22:51:36 +01:00
parent e6f22646a3
commit 4495409499
1 changed files with 19 additions and 0 deletions
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19
src/add-ons/kernel/busses/scsi/ahci/ahci_port.cpp
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@ -659,6 +659,13 @@ AHCIPort::ScsiSynchronizeCache(scsi_ccb *request)
//TRACE("AHCIPort::ScsiSynchronizeCache port %d\n", fIndex);
sata_request *sreq = new(std::nothrow) sata_request(request);
if (sreq == NULL) {
TRACE("out of memory when allocating sync request\n");
request->subsys_status = SCSI_REQ_ABORTED;
gSCSI->finished(request, 1);
return;
}
sreq->set_ata_cmd(fUse48BitCommands ? 0xea : 0xe7); // Flush Cache
ExecuteSataRequest(sreq);
}
@ -716,6 +723,11 @@ AHCIPort::ScsiReadWrite(scsi_ccb *request, uint64 lba, size_t sectorCount,
ASSERT(request->data_length == sectorCount * 512);
sata_request *sreq = new(std::nothrow) sata_request(request);
if (sreq == NULL) {
TRACE("out of memory when allocating read/write request\n");
request->subsys_status = SCSI_REQ_ABORTED;
gSCSI->finished(request, 1);
}
if (fUse48BitCommands) {
if (sectorCount > 65536) {
@ -858,6 +870,13 @@ AHCIPort::ScsiExecuteRequest(scsi_ccb *request)
// TRACE("AHCIPort::ScsiExecuteRequest ATAPI: port %d, opcode 0x%02x, length %u\n", fIndex, request->cdb[0], request->cdb_length);
sata_request *sreq = new(std::nothrow) sata_request(request);
if (sreq == NULL) {
TRACE("out of memory when allocating atapi request\n");
request->subsys_status = SCSI_REQ_ABORTED;
gSCSI->finished(request, 1);
return;
}
sreq->set_atapi_cmd(request->data_length);
// uint8 *data = (uint8*) sreq->ccb()->cdb;
// for (int i = 0; i < 16; i += 8) {