[PATCH] staging: ft1000: ft1000-usb: ft1000_download: Removed variables that is never used
From: Rickard Strandqvist
Date: Wed Jan 28 2015 - 22:53:03 EST
Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.
This was found using a static code analysis program called cppcheck
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@xxxxxxxxxxxxxxxxxx>
---
.../staging/ft1000/ft1000-usb/ft1000_download.c | 45 +++++++++-----------
1 file changed, 19 insertions(+), 26 deletions(-)
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index e8126325..06b21d9 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -113,21 +113,20 @@ static int check_usb_db(struct ft1000_usb *ft1000dev)
{
int loopcnt;
u16 temp;
- int status;
loopcnt = 0;
while (loopcnt < 10) {
- status = ft1000_read_register(ft1000dev, &temp,
+ ft1000_read_register(ft1000dev, &temp,
FT1000_REG_DOORBELL);
pr_debug("read FT1000_REG_DOORBELL value is %x\n", temp);
if (temp & 0x0080) {
pr_debug("Got checkusb doorbell\n");
- status = ft1000_write_register(ft1000dev, 0x0080,
+ ft1000_write_register(ft1000dev, 0x0080,
FT1000_REG_DOORBELL);
- status = ft1000_write_register(ft1000dev, 0x0100,
+ ft1000_write_register(ft1000dev, 0x0100,
FT1000_REG_DOORBELL);
- status = ft1000_write_register(ft1000dev, 0x8000,
+ ft1000_write_register(ft1000dev, 0x8000,
FT1000_REG_DOORBELL);
break;
}
@@ -138,7 +137,7 @@ static int check_usb_db(struct ft1000_usb *ft1000dev)
loopcnt = 0;
while (loopcnt < 20) {
- status = ft1000_read_register(ft1000dev, &temp,
+ ft1000_read_register(ft1000dev, &temp,
FT1000_REG_DOORBELL);
pr_debug("Doorbell = 0x%x\n", temp);
if (temp & 0x8000) {
@@ -202,18 +201,17 @@ static void put_handshake(struct ft1000_usb *ft1000dev, u16 handshake_value)
{
u32 tempx;
u16 tempword;
- int status;
tempx = (u32)handshake_value;
tempx = ntohl(tempx);
tempword = (u16)(tempx & 0xffff);
- status = ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
+ ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
tempword, 0);
tempword = (u16)(tempx >> 16);
- status = ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
+ ft1000_write_dpram16(ft1000dev, DWNLD_MAG1_HANDSHAKE_LOC,
tempword, 1);
- status = ft1000_write_register(ft1000dev, FT1000_DB_DNLD_TX,
+ ft1000_write_register(ft1000dev, FT1000_DB_DNLD_TX,
FT1000_REG_DOORBELL);
}
@@ -222,20 +220,19 @@ static u16 get_handshake_usb(struct ft1000_usb *ft1000dev, u16 expected_value)
u16 handshake;
int loopcnt;
u16 temp;
- int status = 0;
loopcnt = 0;
handshake = 0;
while (loopcnt < 100) {
if (ft1000dev->usbboot == 2) {
- status = ft1000_read_dpram32(ft1000dev, 0,
+ ft1000_read_dpram32(ft1000dev, 0,
(u8 *)&(ft1000dev->tempbuf[0]), 64);
for (temp = 0; temp < 16; temp++) {
pr_debug("tempbuf %d = 0x%x\n",
temp, ft1000dev->tempbuf[temp]);
}
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_HANDSHAKE_LOC,
(u8 *)&handshake, 1);
pr_debug("handshake from read_dpram16 = 0x%x\n",
@@ -248,7 +245,7 @@ static u16 get_handshake_usb(struct ft1000_usb *ft1000dev, u16 expected_value)
ft1000dev->tempbuf[6];
}
} else {
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_HANDSHAKE_LOC,
(u8 *)&handshake, 1);
}
@@ -275,17 +272,16 @@ static void put_handshake_usb(struct ft1000_usb *ft1000dev, u16 handshake_value)
static u16 get_request_type(struct ft1000_usb *ft1000dev)
{
u16 request_type;
- int status;
u16 tempword;
u32 tempx;
if (ft1000dev->bootmode == 1) {
- status = fix_ft1000_read_dpram32(ft1000dev,
+ fix_ft1000_read_dpram32(ft1000dev,
DWNLD_MAG1_TYPE_LOC, (u8 *)&tempx);
tempx = ntohl(tempx);
} else {
tempx = 0;
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_TYPE_LOC, (u8 *)&tempword, 1);
tempx |= (tempword << 16);
tempx = ntohl(tempx);
@@ -298,12 +294,11 @@ static u16 get_request_type(struct ft1000_usb *ft1000dev)
static u16 get_request_type_usb(struct ft1000_usb *ft1000dev)
{
u16 request_type;
- int status;
u16 tempword;
u32 tempx;
if (ft1000dev->bootmode == 1) {
- status = fix_ft1000_read_dpram32(ft1000dev,
+ fix_ft1000_read_dpram32(ft1000dev,
DWNLD_MAG1_TYPE_LOC, (u8 *)&tempx);
tempx = ntohl(tempx);
} else {
@@ -312,7 +307,7 @@ static u16 get_request_type_usb(struct ft1000_usb *ft1000dev)
tempword = ft1000dev->tempbuf[3];
} else {
tempx = 0;
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_TYPE_LOC,
(u8 *)&tempword, 1);
}
@@ -328,17 +323,16 @@ static long get_request_value(struct ft1000_usb *ft1000dev)
{
u32 value;
u16 tempword;
- int status;
if (ft1000dev->bootmode == 1) {
- status = fix_ft1000_read_dpram32(ft1000dev,
+ fix_ft1000_read_dpram32(ft1000dev,
DWNLD_MAG1_SIZE_LOC, (u8 *)&value);
value = ntohl(value);
} else {
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_SIZE_LOC, (u8 *)&tempword, 0);
value = tempword;
- status = ft1000_read_dpram16(ft1000dev,
+ ft1000_read_dpram16(ft1000dev,
DWNLD_MAG1_SIZE_LOC, (u8 *)&tempword, 1);
value |= (tempword << 16);
value = ntohl(value);
@@ -352,10 +346,9 @@ static long get_request_value(struct ft1000_usb *ft1000dev)
static void put_request_value(struct ft1000_usb *ft1000dev, long lvalue)
{
u32 tempx;
- int status;
tempx = ntohl(lvalue);
- status = fix_ft1000_write_dpram32(ft1000dev, DWNLD_MAG1_SIZE_LOC,
+ fix_ft1000_write_dpram32(ft1000dev, DWNLD_MAG1_SIZE_LOC,
(u8 *)&tempx);
}
--
1.7.10.4
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