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2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/drivers/scsi/scsi_lib.c
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@@ -1490,6 +1490,7 @@
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 		 */
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 		SCSI_LOG_MLQUEUE(3, scmd_printk(KERN_INFO, cmd,
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 			"queuecommand : device blocked\n"));
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+		atomic_dec(&cmd->device->iorequest_cnt);
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 		return SCSI_MLQUEUE_DEVICE_BUSY;
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 	}
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@@ -1522,6 +1523,7 @@
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 	trace_scsi_dispatch_cmd_start(cmd);
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 	rtn = host->hostt->queuecommand(host, cmd);
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 	if (rtn) {
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+		atomic_dec(&cmd->device->iorequest_cnt);
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 		trace_scsi_dispatch_cmd_error(cmd, rtn);
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 		if (rtn != SCSI_MLQUEUE_DEVICE_BUSY &&
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 		    rtn != SCSI_MLQUEUE_TARGET_BUSY)