On Tuesday 04 October 2005 08:21, Jens Axboe wrote:
[snip]
> This is a mess. So NACK on this patch. And why are you changing the
[snip]
Hi Jens,
Sorry about the messy previous patch. Would you consider something like the
one below instead? It only makes a few changes, not lots of different ones in
the same patch and it also only makes changes that I hope you'll agree are
useful. :)
Remove some unneeded casts.
Avoid an assignment in the case of kmalloc failure.
Break a few instances of if (foo) whatever; into two lines.
Signed-off-by: Jesper Juhl <[email protected]>
---
drivers/ide/ide-cd.c | 54 +++++++++++++++++++++++++++------------------------
1 files changed, 29 insertions(+), 25 deletions(-)
--- linux-2.6.14-rc3-git3-orig/drivers/ide/ide-cd.c 2005-08-29 01:41:01.000000000 +0200
+++ linux-2.6.14-rc3-git3/drivers/ide/ide-cd.c 2005-10-05 00:04:01.000000000 +0200
@@ -2211,13 +2211,12 @@ static int cdrom_read_toc(ide_drive_t *d
if (toc == NULL) {
/* Try to allocate space. */
- toc = (struct atapi_toc *) kmalloc (sizeof (struct atapi_toc),
- GFP_KERNEL);
- info->toc = toc;
+ toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
if (toc == NULL) {
printk (KERN_ERR "%s: No cdrom TOC buffer!\n", drive->name);
return -ENOMEM;
}
+ info->toc = toc;
}
/* Check to see if the existing data is still valid.
@@ -2240,7 +2239,8 @@ static int cdrom_read_toc(ide_drive_t *d
/* First read just the header, so we know how long the TOC is. */
stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
sizeof(struct atapi_toc_header), sense);
- if (stat) return stat;
+ if (stat)
+ return stat;
#if ! STANDARD_ATAPI
if (CDROM_CONFIG_FLAGS(drive)->toctracks_as_bcd) {
@@ -2324,7 +2324,8 @@ static int cdrom_read_toc(ide_drive_t *d
/* Read the multisession information. */
stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
sizeof(ms_tmp), sense);
- if (stat) return stat;
+ if (stat)
+ return stat;
toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
} else {
@@ -2460,7 +2461,7 @@ static int ide_cdrom_packet(struct cdrom
struct packet_command *cgc)
{
struct request req;
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
if (cgc->timeout <= 0)
cgc->timeout = ATAPI_WAIT_PC;
@@ -2537,7 +2538,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_
unsigned int cmd, void *arg)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct cdrom_info *info = drive->driver_data;
int stat;
@@ -2548,7 +2549,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_
*/
case CDROMPLAYTRKIND: {
unsigned long lba_start, lba_end;
- struct cdrom_ti *ti = (struct cdrom_ti *)arg;
+ struct cdrom_ti *ti = arg;
struct atapi_toc_entry *first_toc, *last_toc;
stat = cdrom_get_toc_entry(drive, ti->cdti_trk0, &first_toc);
@@ -2571,12 +2572,13 @@ int ide_cdrom_audio_ioctl (struct cdrom_
}
case CDROMREADTOCHDR: {
- struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg;
+ struct cdrom_tochdr *tochdr = arg;
struct atapi_toc *toc;
/* Make sure our saved TOC is valid. */
stat = cdrom_read_toc(drive, NULL);
- if (stat) return stat;
+ if (stat)
+ return stat;
toc = info->toc;
tochdr->cdth_trk0 = toc->hdr.first_track;
@@ -2586,11 +2588,12 @@ int ide_cdrom_audio_ioctl (struct cdrom_
}
case CDROMREADTOCENTRY: {
- struct cdrom_tocentry *tocentry = (struct cdrom_tocentry*) arg;
+ struct cdrom_tocentry *tocentry = arg;
struct atapi_toc_entry *toce;
stat = cdrom_get_toc_entry(drive, tocentry->cdte_track, &toce);
- if (stat) return stat;
+ if (stat)
+ return stat;
tocentry->cdte_ctrl = toce->control;
tocentry->cdte_adr = toce->adr;
@@ -2613,7 +2616,7 @@ int ide_cdrom_audio_ioctl (struct cdrom_
static
int ide_cdrom_reset (struct cdrom_device_info *cdi)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct request_sense sense;
struct request req;
int ret;
@@ -2636,12 +2639,13 @@ int ide_cdrom_reset (struct cdrom_device
static
int ide_cdrom_tray_move (struct cdrom_device_info *cdi, int position)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct request_sense sense;
if (position) {
int stat = cdrom_lockdoor(drive, 0, &sense);
- if (stat) return stat;
+ if (stat)
+ return stat;
}
return cdrom_eject(drive, !position, &sense);
@@ -2650,7 +2654,7 @@ int ide_cdrom_tray_move (struct cdrom_de
static
int ide_cdrom_lock_door (struct cdrom_device_info *cdi, int lock)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
return cdrom_lockdoor(drive, lock, NULL);
}
@@ -2700,7 +2704,7 @@ void ide_cdrom_update_speed (ide_drive_t
static
int ide_cdrom_select_speed (struct cdrom_device_info *cdi, int speed)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct request_sense sense;
struct atapi_capabilities_page cap;
int stat;
@@ -2723,7 +2727,7 @@ int ide_cdrom_select_speed (struct cdrom
static
int ide_cdrom_drive_status (struct cdrom_device_info *cdi, int slot_nr)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct media_event_desc med;
struct request_sense sense;
int stat;
@@ -2769,7 +2773,7 @@ int ide_cdrom_get_last_session (struct c
struct cdrom_multisession *ms_info)
{
struct atapi_toc *toc;
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
struct cdrom_info *info = drive->driver_data;
struct request_sense sense;
int ret;
@@ -2791,7 +2795,7 @@ int ide_cdrom_get_mcn (struct cdrom_devi
{
int stat;
char mcnbuf[24];
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
/* get MCN */
if ((stat = cdrom_read_subchannel(drive, 2, mcnbuf, sizeof (mcnbuf), NULL)))
@@ -2815,7 +2819,7 @@ static
int ide_cdrom_check_media_change_real (struct cdrom_device_info *cdi,
int slot_nr)
{
- ide_drive_t *drive = (ide_drive_t*) cdi->handle;
+ ide_drive_t *drive = cdi->handle;
int retval;
if (slot_nr == CDSL_CURRENT) {
@@ -2886,7 +2890,7 @@ static int ide_cdrom_register (ide_drive
devinfo->mask = 0;
devinfo->speed = CDROM_STATE_FLAGS(drive)->current_speed;
devinfo->capacity = nslots;
- devinfo->handle = (void *) drive;
+ devinfo->handle = drive;
strcpy(devinfo->name, drive->name);
/* set capability mask to match the probe. */
@@ -2942,7 +2946,7 @@ int ide_cdrom_probe_capabilities (ide_dr
* registered with the Uniform layer yet, it can't do this.
* Same goes for cdi->ops.
*/
- cdi->handle = (ide_drive_t *) drive;
+ cdi->handle = drive;
cdi->ops = &ide_cdrom_dops;
if (ide_cdrom_get_capabilities(drive, &cap))
@@ -3309,7 +3313,7 @@ static int ide_cd_probe(struct device *)
static int proc_idecd_read_capacity
(char *page, char **start, off_t off, int count, int *eof, void *data)
{
- ide_drive_t*drive = (ide_drive_t *)data;
+ ide_drive_t *drive = data;
int len;
len = sprintf(page,"%llu\n", (long long)ide_cdrom_capacity(drive));
@@ -3449,7 +3453,7 @@ static int ide_cd_probe(struct device *d
printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi emulation.\n", drive->name);
goto failed;
}
- info = (struct cdrom_info *) kmalloc (sizeof (struct cdrom_info), GFP_KERNEL);
+ info = kmalloc(sizeof(struct cdrom_info), GFP_KERNEL);
if (info == NULL) {
printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", drive->name);
goto failed;
-
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