Trying to attach a QMP monitor to a chardev that is already in use results in a crash because monitor_init_qmp() passes &error_abort to qemu_chr_fe_init(): $ ./x86_64-softmmu/qemu-system-x86_64 --chardev stdio,id=foo --mon foo,mode=control --mon foo,mode=control Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:220: qemu-system-x86_64: --mon foo,mode=control: Device 'foo' is in use Abgebrochen (Speicherabzug geschrieben) Fix this by allowing monitor_init_qmp() to return an error and passing any error in qemu_chr_fe_init() to its caller instead of aborting. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200224143008.13362-18-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
		
			
				
	
	
		
			22 lines
		
	
	
		
			349 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			349 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include "qemu/osdep.h"
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#include "monitor/monitor.h"
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#include "qemu-common.h"
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#include "qapi/qapi-emit-events.h"
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__thread Monitor *cur_mon;
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void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp)
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{
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}
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void qapi_event_emit(QAPIEvent event, QDict *qdict)
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{
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}
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int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
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{
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    abort();
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}
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