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diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
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index 639d26b..2b94403 100644
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--- a/drivers/block/cpqarray.c
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+++ b/drivers/block/cpqarray.c
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@@ -1193,6 +1193,7 @@ out_passthru:
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 		ida_pci_info_struct pciinfo;
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 		if (!arg) return -EINVAL;
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+		memset(&pciinfo, 0, sizeof(pciinfo));
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 		pciinfo.bus = host->pci_dev->bus->number;
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 		pciinfo.dev_fn = host->pci_dev->devfn;
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 		pciinfo.board_id = host->board_id;
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  diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
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index 6374dc1..34971aa 100644
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--- a/drivers/block/cciss.c
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+++ b/drivers/block/cciss.c
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@@ -1201,6 +1201,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
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 	int err;
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 	u32 cp;
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+	memset(&arg64, 0, sizeof(arg64));
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 	err = 0;
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 	err |=
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 	    copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
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