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Date: Wed, 10 Nov 2010 21:31:38 +0100 (CET)
From: Jesper Juhl <jj@...osbits.net>
To: Greg KH <greg@...ah.com>
cc: linux-kernel@...r.kernel.org,
Randy Dunlap <randy.dunlap@...cle.com>,
devel@...verdev.osuosl.org, Dan Carpenter <error27@...il.com>,
Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...e.de>,
Stephen Hemminger <shemminger@...tta.com>
Subject: Re: [PATCH 10/17][trivial] staging, bcm: Remove unnecessary casts
of void ptr returning alloc function return values
On Tue, 9 Nov 2010, Greg KH wrote:
> On Tue, Nov 09, 2010 at 12:09:51AM +0100, Jesper Juhl wrote:
> > Hi,
> >
> > The [vk][cmz]alloc(_node) family of functions return void pointers which
> > it's completely unnecessary/pointless to cast to other pointer types since
> > that happens implicitly.
> >
> > This patch removes such casts from drivers/staging/bcm/
> >
> >
> > Signed-off-by: Jesper Juhl <jj@...osbits.net>
> > ---
> > CmHost.c | 2 +-
> > InterfaceDld.c | 27 +++++++++++++--------------
> > Misc.c | 12 +++++-------
> > 3 files changed, 19 insertions(+), 22 deletions(-)
> >
> > diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
>
> This driver just got a major overhaul, and this patch doesn't apply
> anymore.
>
> Care to redo it against the next linux-next tree?
>
Here's a patch against a copy of linux-next that I just cloned.
Don't pointlessly cast pointers returned by allocation functions that
return void pointers which are implicitly converted.
For drivers/staging/bcm/
Signed-off-by: Jesper Juhl <jj@...osbits.net>
---
CmHost.c | 2 +-
InterfaceDld.c | 14 ++++++--------
Misc.c | 15 ++++++---------
3 files changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index 38b64e6..a685cad 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -1702,7 +1702,7 @@ ULONG StoreCmControlResponseMessage(PMINI_ADAPTER Adapter,PVOID pvBuffer,UINT *p
}
// For DSA_REQ, only upto "psfAuthorizedSet" parameter should be accessed by driver!
- pstAddIndication=(stLocalSFAddIndication *)kmalloc(sizeof(*pstAddIndication), GFP_KERNEL);
+ pstAddIndication=kmalloc(sizeof(*pstAddIndication), GFP_KERNEL);
if(NULL==pstAddIndication)
return 0;
diff --git a/drivers/staging/bcm/InterfaceDld.c b/drivers/staging/bcm/InterfaceDld.c
index 1fc36a1..df64acb 100644
--- a/drivers/staging/bcm/InterfaceDld.c
+++ b/drivers/staging/bcm/InterfaceDld.c
@@ -5,15 +5,14 @@ int InterfaceFileDownload( PVOID arg,
struct file *flp,
unsigned int on_chip_loc)
{
- char *buff=NULL;
// unsigned int reg=0;
mm_segment_t oldfs={0};
int errno=0, len=0 /*,is_config_file = 0*/;
loff_t pos=0;
PS_INTERFACE_ADAPTER psIntfAdapter = (PS_INTERFACE_ADAPTER)arg;
//PMINI_ADAPTER Adapter = psIntfAdapter->psAdapter;
+ char *buff=kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
- buff=(PCHAR)kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
if(!buff)
{
return -ENOMEM;
@@ -56,7 +55,7 @@ int InterfaceFileReadbackFromChip( PVOID arg,
struct file *flp,
unsigned int on_chip_loc)
{
- char *buff=NULL, *buff_readback=NULL;
+ char *buff, *buff_readback;
unsigned int reg=0;
mm_segment_t oldfs={0};
int errno=0, len=0, is_config_file = 0;
@@ -65,8 +64,8 @@ int InterfaceFileReadbackFromChip( PVOID arg,
INT Status = STATUS_SUCCESS;
PS_INTERFACE_ADAPTER psIntfAdapter = (PS_INTERFACE_ADAPTER)arg;
- buff=(PCHAR)kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
- buff_readback=(PCHAR)kmalloc(MAX_TRANSFER_CTRL_BYTE_USB , GFP_DMA);
+ buff=kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
+ buff_readback=kmalloc(MAX_TRANSFER_CTRL_BYTE_USB , GFP_DMA);
if(!buff || !buff_readback)
{
kfree(buff);
@@ -287,7 +286,7 @@ int bcm_ioctl_fw_download(PMINI_ADAPTER Adapter, FIRMWARE_INFO *psFwInfo)
else
{
- buff = (PUCHAR)kzalloc(psFwInfo->u32FirmwareLength,GFP_KERNEL);
+ buff = kzalloc(psFwInfo->u32FirmwareLength,GFP_KERNEL);
if(buff==NULL)
{
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL,"Failed in allocation memory");
@@ -345,11 +344,10 @@ static INT buffRdbkVerify(PMINI_ADAPTER Adapter,
PUCHAR mappedbuffer, UINT u32FirmwareLength,
ULONG u32StartingAddress)
{
- PUCHAR readbackbuff = NULL;
UINT len = u32FirmwareLength;
INT retval = STATUS_SUCCESS;
+ PUCHAR readbackbuff = kzalloc(MAX_TRANSFER_CTRL_BYTE_USB,GFP_KERNEL);
- readbackbuff = (PUCHAR)kzalloc(MAX_TRANSFER_CTRL_BYTE_USB,GFP_KERNEL);
if(NULL == readbackbuff)
{
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "MEMORY ALLOCATION FAILED");
diff --git a/drivers/staging/bcm/Misc.c b/drivers/staging/bcm/Misc.c
index 82d9f86..1bb6a1d 100644
--- a/drivers/staging/bcm/Misc.c
+++ b/drivers/staging/bcm/Misc.c
@@ -71,8 +71,7 @@ InitAdapter(PMINI_ADAPTER psAdapter)
default_wimax_protocol_initialize(psAdapter);
for (i=0;i<MAX_CNTRL_PKTS;i++)
{
- psAdapter->txctlpacket[i] = (char *)kmalloc(MAX_CNTL_PKT_SIZE,
- GFP_KERNEL);
+ psAdapter->txctlpacket[i] = kmalloc(MAX_CNTL_PKT_SIZE, GFP_KERNEL);
if(!psAdapter->txctlpacket[i])
{
BCM_DEBUG_PRINT(psAdapter,DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "No More Cntl pkts got, max got is %d", i);
@@ -1228,11 +1227,11 @@ static int bcm_parse_target_params(PMINI_ADAPTER Adapter)
{
struct file *flp=NULL;
mm_segment_t oldfs={0};
- char *buff = NULL;
+ char *buff;
int len = 0;
loff_t pos = 0;
- buff=(PCHAR)kmalloc(BUFFER_1K, GFP_KERNEL);
+ buff=kmalloc(BUFFER_1K, GFP_KERNEL);
if(!buff)
{
return -ENOMEM;
@@ -1393,12 +1392,10 @@ static VOID doPowerAutoCorrection(PMINI_ADAPTER psAdapter)
#if 0
static unsigned char *ReadMacAddrEEPROM(PMINI_ADAPTER Adapter, ulong dwAddress)
{
- unsigned char *pucmacaddr = NULL;
- int status = 0, i=0;
- unsigned int temp =0;
+ int status = 0, i = 0;
+ unsigned int temp = 0;
+ unsigned char *pucmacaddr = kmalloc(MAC_ADDRESS_SIZE, GFP_KERNEL);
-
- pucmacaddr = (unsigned char *)kmalloc(MAC_ADDRESS_SIZE, GFP_KERNEL);
if(!pucmacaddr)
{
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "No Buffers to Read the EEPROM Address\n");
--
Jesper Juhl <jj@...osbits.net> http://www.chaosbits.net/
Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please.
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