lkml.org 
[lkml]   [2010]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 06/24] drivers/block/floppy.c: Hoist assigns from if()s, neatening
Date
Move assigns above if()s
Remove unnecessary parentheses from returns
Use a temporary for a duplicated test
Signed-off-by: Joe Perches <joe@perches.com>
---
drivers/block/floppy.c | 53 ++++++++++++++++++++++++++---------------------
1 files changed, 29 insertions(+), 24 deletions(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index f8c69fa..461c99a 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -1175,9 +1175,9 @@ static int wait_til_ready(void)
/* sends a command byte to the fdc */
static int output_byte(char byte)
{
- int status;
+ int status = wait_til_ready();

- if ((status = wait_til_ready()) < 0)
+ if (status < 0)
return -1;
if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY) {
fd_outb(byte, FD_DATA);
@@ -1207,7 +1207,8 @@ static int result(void)
int status = 0;

for (i = 0; i < MAX_REPLIES; i++) {
- if ((status = wait_til_ready()) < 0)
+ status = wait_til_ready();
+ if (status < 0)
break;
status &= STATUS_DIR | STATUS_READY | STATUS_BUSY | STATUS_DMA;
if ((status & ~STATUS_BUSY) == STATUS_READY) {
@@ -1236,9 +1237,9 @@ static int result(void)
/* does the fdc need more output? */
static int need_more_output(void)
{
- int status;
+ int status = wait_til_ready();

- if ((status = wait_til_ready()) < 0)
+ if (status < 0)
return -1;
if ((status & (STATUS_READY | STATUS_DIR | STATUS_DMA)) == STATUS_READY)
return MORE_OUTPUT;
@@ -1414,8 +1415,8 @@ static int fdc_dtr(void)
* Pause 5 msec to avoid trouble. (Needs to be 2 jiffies)
*/
FDCS->dtr = raw_cmd->rate & 3;
- return (fd_wait_for_completion(jiffies + 2UL * HZ / 100,
- (timeout_fn) floppy_ready));
+ return fd_wait_for_completion(jiffies + 2UL * HZ / 100,
+ (timeout_fn)floppy_ready);
} /* fdc_dtr */

static void tell_sector(void)
@@ -1951,8 +1952,8 @@ static int start_motor(void (*function)(void))
set_dor(fdc, mask, data);

/* wait_for_completion also schedules reset if needed. */
- return (fd_wait_for_completion(DRS->select_date + DP->select_delay,
- (timeout_fn) function));
+ return fd_wait_for_completion(DRS->select_date + DP->select_delay,
+ (timeout_fn)function);
}

static void floppy_ready(void)
@@ -2729,8 +2730,10 @@ static int make_raw_rw_request(void)
}
} else if (in_sector_offset || blk_rq_sectors(current_req) < ssize) {
if (CT(COMMAND) == FD_WRITE) {
- if (fsector_t + blk_rq_sectors(current_req) > ssize &&
- fsector_t + blk_rq_sectors(current_req) < ssize + ssize)
+ unsigned int sectors;
+
+ sectors = fsector_t + blk_rq_sectors(current_req);
+ if (sectors > ssize && sectors < ssize + ssize)
max_size = ssize + ssize;
else
max_size = ssize;
@@ -2751,9 +2754,8 @@ static int make_raw_rw_request(void)
* on a 64 bit machine!
*/
max_size = buffer_chain_size();
- dma_limit =
- (MAX_DMA_ADDRESS -
- ((unsigned long)current_req->buffer)) >> 9;
+ dma_limit = (MAX_DMA_ADDRESS -
+ ((unsigned long)current_req->buffer)) >> 9;
if ((unsigned long)max_size > dma_limit)
max_size = dma_limit;
/* 64 kb boundaries */
@@ -2771,16 +2773,16 @@ static int make_raw_rw_request(void)
*/
if (!direct ||
(indirect * 2 > direct * 3 &&
- *errors < DP->max_errors.read_track && ((!probing
- || (DP->read_track & (1 << DRS->probed_format)))))) {
+ *errors < DP->max_errors.read_track &&
+ ((!probing ||
+ (DP->read_track & (1 << DRS->probed_format)))))) {
max_size = blk_rq_sectors(current_req);
} else {
raw_cmd->kernel_data = current_req->buffer;
raw_cmd->length = current_count_sectors << 9;
if (raw_cmd->length == 0) {
- DPRINT
- ("zero dma transfer attempted from make_raw_request\n");
- DPRINT("indirect=%d direct=%d fsector_t=%d",
+ DPRINT("zero dma transfer attempted from make_raw_request\n");
+ DPRINT("indirect=%d direct=%d fsector_t=%d\n",
indirect, direct, fsector_t);
return 0;
}
@@ -2977,7 +2979,7 @@ static void process_fd_request(void)
schedule_bh(redo_fd_request);
}

-static void do_fd_request(struct request_queue * q)
+static void do_fd_request(struct request_queue *q)
{
if (max_buffer_sectors == 0) {
pr_info("VFS: do_fd_request called on non-open device\n");
@@ -3937,7 +3939,8 @@ static char __init get_fdc_version(void)
output_byte(FD_DUMPREGS); /* 82072 and better know DUMPREGS */
if (FDCS->reset)
return FDC_NONE;
- if ((r = result()) <= 0x00)
+ r = result();
+ if (r <= 0x00)
return FDC_NONE; /* No FDC present ??? */
if ((r == 1) && (reply_buffer[0] == 0x80)) {
pr_info("FDC %d is an 8272A\n", fdc);
@@ -3966,7 +3969,7 @@ static char __init get_fdc_version(void)
r = result();
if ((r == 1) && (reply_buffer[0] == 0x80)) {
pr_info("FDC %d is a pre-1991 82077\n", fdc);
- return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know
+ return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know
* LOCK/UNLOCK */
}
if ((r != 1) || (reply_buffer[0] != 0x00)) {
@@ -4357,7 +4360,8 @@ static int __init floppy_init(void)
if (err)
goto out_flush_work;

- err = device_create_file(&floppy_device[drive].dev,&dev_attr_cmos);
+ err = device_create_file(&floppy_device[drive].dev,
+ &dev_attr_cmos);
if (err)
goto out_unreg_platform_dev;

@@ -4578,7 +4582,8 @@ static void __init parse_floppy_cfg_string(char *cfg)
char *ptr;

while (*cfg) {
- for (ptr = cfg; *cfg && *cfg != ' ' && *cfg != '\t'; cfg++) ;
+ for (ptr = cfg; *cfg && *cfg != ' ' && *cfg != '\t'; cfg++)
+ ;
if (*cfg) {
*cfg = '\0';
cfg++;
--
1.6.6.rc0.57.gad7a


\
 
 \ /
  Last update: 2010-01-22 05:59    [from the cache]
©2003-2011 Jasper Spaans