[PATCH v3] staging/keucr driver - uninitialized variable & propermemset length

From: Konstantin Katuev
Date: Thu Oct 28 2010 - 21:18:30 EST

Next message: Bryan Huntsman: "Re: [PATCH 1/8] staging: dream: fix information leak to userland"
Previous message: Stephen Rothwell: "linux-next: Tree for October 29"
Next in thread: Greg KH: "Re: [PATCH v3] staging/keucr driver - uninitialized variable &proper memset length"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Sorry, i see waste mime characters in my previous post.
This one shoud be clean.

There was commented out transfer_flags initialization.
And i think memset should fill entire structure, not only length of
pointer to it.
Driver now works.

Signed-off-by: Konstantin Katuev <kkatuev@xxxxxxxxx>
---
diff --git a/drivers/staging/keucr/init.c b/drivers/staging/keucr/init.c
index 1934805..978bf87 100644
--- a/drivers/staging/keucr/init.c
+++ b/drivers/staging/keucr/init.c
@@ -22,7 +22,7 @@ int ENE_InitMedia(struct us_data *us)
int result;
BYTE MiscReg03 = 0;

- printk("--- Initial Nedia ---\n");
+ printk("--- Init Media ---\n");
result = ENE_Read_BYTE(us, REG_CARD_STATUS, &MiscReg03);
if (result != USB_STOR_XFER_GOOD)
{
@@ -64,7 +64,7 @@ int ENE_Read_BYTE(struct us_data *us, WORD index, void *buf)
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x01;
bcb->Flags = 0x80;
@@ -92,7 +92,7 @@ int ENE_SDInit(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->Flags = 0x80;
bcb->CDB[0] = 0xF2;
@@ -112,7 +112,7 @@ int ENE_SDInit(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -161,7 +161,7 @@ int ENE_MSInit(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -219,7 +219,7 @@ int ENE_SMInit(struct us_data *us)
return USB_STOR_TRANSPORT_ERROR;
}

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -341,7 +341,7 @@ int ENE_LoadBinCode(struct us_data *us, BYTE flag)
break;
}

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x800;
bcb->Flags =0x00;
@@ -433,7 +433,7 @@ int ENE_Read_Data(struct us_data *us, void *buf,
unsigned int length)

//printk("transport --- ENE_Read_Data\n");
// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags =0x80;
@@ -470,7 +470,7 @@ int ENE_Write_Data(struct us_data *us, void *buf,
unsigned int length)

//printk("transport --- ENE_Write_Data\n");
// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags =0x00;
diff --git a/drivers/staging/keucr/ms.c b/drivers/staging/keucr/ms.c
index d4340a9..9a3fdb4 100644
--- a/drivers/staging/keucr/ms.c
+++ b/drivers/staging/keucr/ms.c
@@ -15,7 +15,7 @@ int MS_ReaderCopyBlock(struct us_data *us, WORD
oldphy, WORD newphy, WORD PhyBlo
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200*len;
bcb->Flags = 0x00;
@@ -53,7 +53,7 @@ int MS_ReaderReadPage(struct us_data *us, DWORD
PhyBlockAddr, BYTE PageNum, PDWO
return USB_STOR_TRANSPORT_ERROR;

// Read Page Data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -69,7 +69,7 @@ int MS_ReaderReadPage(struct us_data *us, DWORD
PhyBlockAddr, BYTE PageNum, PDWO
return USB_STOR_TRANSPORT_ERROR;

// Read Extra Data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x4;
bcb->Flags = 0x80;
@@ -108,7 +108,7 @@ int MS_ReaderEraseBlock(struct us_data *us, DWORD
PhyBlockAddr)
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -673,7 +673,7 @@ int MS_LibReadExtraBlock(struct us_data *us, DWORD
PhyBlock, BYTE PageNum, BYTE
//printk("MS_LibReadExtraBlock --- PhyBlock = %x, PageNum =
%x, blen = %x\n", PhyBlock, PageNum, blen);

// Read Extra Data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x4 * blen;
bcb->Flags = 0x80;
@@ -700,7 +700,7 @@ int MS_LibReadExtra(struct us_data *us, DWORD
PhyBlock, BYTE PageNum, MS_LibType
BYTE ExtBuf[4];

//printk("MS_LibReadExtra --- PhyBlock = %x, PageNum = %x\n",
PhyBlock, PageNum);
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x4;
bcb->Flags = 0x80;
@@ -807,7 +807,7 @@ int MS_LibOverwriteExtra(struct us_data *us, DWORD
PhyBlockAddr, BYTE PageNum, B
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x4;
bcb->Flags = 0x80;
diff --git a/drivers/staging/keucr/msscsi.c b/drivers/staging/keucr/msscsi.c
index ad0c5c6..cb92d25 100644
--- a/drivers/staging/keucr/msscsi.c
+++ b/drivers/staging/keucr/msscsi.c
@@ -145,7 +145,7 @@ int MS_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
}

// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x80;
@@ -193,7 +193,7 @@ int MS_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
blkno = phyblk * 0x20 + PageNum;

// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200 * len;
bcb->Flags = 0x80;
@@ -250,7 +250,7 @@ int MS_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
}

// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x00;
diff --git a/drivers/staging/keucr/sdscsi.c b/drivers/staging/keucr/sdscsi.c
index 6c332f8..d646507 100644
--- a/drivers/staging/keucr/sdscsi.c
+++ b/drivers/staging/keucr/sdscsi.c
@@ -152,7 +152,7 @@ int SD_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
bnByte = bn;

// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x80;
@@ -192,7 +192,7 @@ int SD_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
bnByte = bn;

// set up the command wrapper
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x00;
diff --git a/drivers/staging/keucr/smilsub.c b/drivers/staging/keucr/smilsub.c
index 844b659..1b52535 100644
--- a/drivers/staging/keucr/smilsub.c
+++ b/drivers/staging/keucr/smilsub.c
@@ -266,7 +266,7 @@ int Ssfdc_D_ReadSect(struct us_data *us, BYTE
*buf,BYTE *redundant)
addr = addr*(WORD)Ssfdc.MaxSectors+Media.Sector;

// Read sect data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -281,7 +281,7 @@ int Ssfdc_D_ReadSect(struct us_data *us, BYTE
*buf,BYTE *redundant)
return USB_STOR_TRANSPORT_ERROR;

// Read redundant
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x10;
bcb->Flags = 0x80;
@@ -319,7 +319,7 @@ int Ssfdc_D_ReadBlock(struct us_data *us, WORD
count, BYTE *buf,BYTE *redundant)
addr = addr*(WORD)Ssfdc.MaxSectors+Media.Sector;

// Read sect data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200*count;
bcb->Flags = 0x80;
@@ -334,7 +334,7 @@ int Ssfdc_D_ReadBlock(struct us_data *us, WORD
count, BYTE *buf,BYTE *redundant)
return USB_STOR_TRANSPORT_ERROR;

// Read redundant
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x10;
bcb->Flags = 0x80;
@@ -536,7 +536,7 @@ int Ssfdc_D_CopyBlock(struct us_data *us, WORD
count, BYTE *buf,BYTE *redundant)
WriteAddr = WriteAddr*(WORD)Ssfdc.MaxSectors;

// Write sect data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200*count;
bcb->Flags = 0x00;
@@ -754,7 +754,7 @@ int Ssfdc_D_WriteSectForCopy(struct us_data *us,
BYTE *buf, BYTE *redundant)
addr = addr*(WORD)Ssfdc.MaxSectors+Media.Sector;

// Write sect data
- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x00;
@@ -791,7 +791,7 @@ int Ssfdc_D_EraseBlock(struct us_data *us)
addr=(WORD)Media.Zone*Ssfdc.MaxBlocks+Media.PhyBlock;
addr=addr*(WORD)Ssfdc.MaxSectors;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
@@ -827,7 +827,7 @@ int Ssfdc_D_ReadRedtData(struct us_data *us, BYTE
*redundant)
addr = (WORD)Media.Zone*Ssfdc.MaxBlocks+Media.PhyBlock;
addr = addr*(WORD)Ssfdc.MaxSectors+Media.Sector;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x10;
bcb->Flags = 0x80;
@@ -870,7 +870,7 @@ int Ssfdc_D_WriteRedtData(struct us_data *us, BYTE
*redundant)
addr = (WORD)Media.Zone*Ssfdc.MaxBlocks+Media.PhyBlock;
addr = addr*(WORD)Ssfdc.MaxSectors+Media.Sector;

- memset(bcb, 0, sizeof(bcb));
+ memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x10;
bcb->Flags = 0x80;
diff --git a/drivers/staging/keucr/transport.c
b/drivers/staging/keucr/transport.c
index 4697021..e3d3163 100644
--- a/drivers/staging/keucr/transport.c
+++ b/drivers/staging/keucr/transport.c
@@ -40,7 +40,7 @@ static int usb_stor_msg_common(struct us_data *us,
int timeout)
us->current_urb->error_count = 0;
us->current_urb->status = 0;

-// us->current_urb->transfer_flags = URB_NO_SETUP_DMA_MAP;
+ us->current_urb->transfer_flags = 0;
if (us->current_urb->transfer_buffer == us->iobuf)
us->current_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
us->current_urb->transfer_dma = us->iobuf_dma;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Next message: Bryan Huntsman: "Re: [PATCH 1/8] staging: dream: fix information leak to userland"
Previous message: Stephen Rothwell: "linux-next: Tree for October 29"
Next in thread: Greg KH: "Re: [PATCH v3] staging/keucr driver - uninitialized variable &proper memset length"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]