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Revert "megasas: remove useless check for cmd->frame" 

This reverts commit 8cc46787b5.
It turns out that cmd->frame can be NULL and thus the commit
can cause a SIGSEGV

Reported-by: Holger Schranz <holger@fam-schranz.de>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-09-08 17:42:53 +02:00
parent 90f998f5f4
commit 421cc3e7e8
1 changed files with 5 additions and 1 deletions
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6
hw/scsi/megasas.c
View File

@ -1981,7 +1981,11 @@ static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr,
break;
}
if (frame_status != MFI_STAT_INVALID_STATUS) {
cmd->frame->header.cmd_status = frame_status;
if (cmd->frame) {
cmd->frame->header.cmd_status = frame_status;
} else {
megasas_frame_set_cmd_status(s, frame_addr, frame_status);
}
megasas_unmap_frame(s, cmd);
megasas_complete_frame(s, cmd->context);
}