diff options
Diffstat (limited to 'drivers/staging/dgap/dgap_tty.c')
| -rw-r--r-- | drivers/staging/dgap/dgap_tty.c | 41 |
1 files changed, 12 insertions, 29 deletions
diff --git a/drivers/staging/dgap/dgap_tty.c b/drivers/staging/dgap/dgap_tty.c index b906db30b617..2a7a37298da4 100644 --- a/drivers/staging/dgap/dgap_tty.c +++ b/drivers/staging/dgap/dgap_tty.c @@ -249,7 +249,7 @@ int dgap_tty_register(struct board_t *brd) /* * If we're doing transparent print, we have to do all of the above - * again, seperately so we don't get the LD confused about what major + * again, separately so we don't get the LD confused about what major * we are when we get into the dgap_tty_open() routine. */ brd->PrintDriver = alloc_tty_driver(MAXPORTS); @@ -497,10 +497,8 @@ int dgap_tty_init(struct board_t *brd) */ void dgap_tty_post_uninit(void) { - if (dgap_TmpWriteBuf) { - kfree(dgap_TmpWriteBuf); - dgap_TmpWriteBuf = NULL; - } + kfree(dgap_TmpWriteBuf); + dgap_TmpWriteBuf = NULL; } @@ -522,10 +520,8 @@ void dgap_tty_uninit(struct board_t *brd) tty_unregister_device(brd->SerialDriver, i); } tty_unregister_driver(brd->SerialDriver); - if (brd->SerialDriver->ttys) { - kfree(brd->SerialDriver->ttys); - brd->SerialDriver->ttys = NULL; - } + kfree(brd->SerialDriver->ttys); + brd->SerialDriver->ttys = NULL; put_tty_driver(brd->SerialDriver); brd->dgap_Major_Serial_Registered = FALSE; } @@ -538,10 +534,8 @@ void dgap_tty_uninit(struct board_t *brd) tty_unregister_device(brd->PrintDriver, i); } tty_unregister_driver(brd->PrintDriver); - if (brd->PrintDriver->ttys) { - kfree(brd->PrintDriver->ttys); - brd->PrintDriver->ttys = NULL; - } + kfree(brd->PrintDriver->ttys); + brd->PrintDriver->ttys = NULL; put_tty_driver(brd->PrintDriver); brd->dgap_Major_TransparentPrint_Registered = FALSE; } @@ -601,7 +595,7 @@ static void dgap_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *b /* * Loop while data remains. */ - while (nbuf > 0 && ch->ch_sniff_buf != 0) { + while (nbuf > 0 && ch->ch_sniff_buf) { /* * Determine the amount of available space left in the * buffer. If there's none, wait until some appears. @@ -1069,7 +1063,7 @@ static int dgap_tty_open(struct tty_struct *tty, struct file *file) DGAP_LOCK(brd->bd_lock, lock_flags); - /* The wait above should guarentee this cannot happen */ + /* The wait above should guarantee this cannot happen */ if (brd->state != BOARD_READY) { DGAP_UNLOCK(brd->bd_lock, lock_flags); return -ENXIO; @@ -1113,9 +1107,10 @@ static int dgap_tty_open(struct tty_struct *tty, struct file *file) MAJOR(tty_devnum(tty)), MINOR(tty_devnum(tty)), un, brd->name)); /* - * Error if channel info pointer is 0. + * Error if channel info pointer is NULL. */ - if ((bs = ch->ch_bs) == 0) { + bs = ch->ch_bs; + if (!bs) { DGAP_UNLOCK(ch->ch_lock, lock_flags2); DGAP_UNLOCK(brd->bd_lock, lock_flags); DPR_OPEN(("%d BS is 0!\n", __LINE__)); @@ -3513,10 +3508,6 @@ static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd, return(-EINVAL); } - DGAP_UNLOCK(ch->ch_lock, lock_flags2); - DGAP_UNLOCK(bd->bd_lock, lock_flags); - return(-ENOIOCTLCMD); - case DIGI_GETA: /* get information for ditty */ DGAP_UNLOCK(ch->ch_lock, lock_flags2); @@ -3586,12 +3577,4 @@ static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd, return(-ENOIOCTLCMD); } - - DGAP_UNLOCK(ch->ch_lock, lock_flags2); - DGAP_UNLOCK(bd->bd_lock, lock_flags); - - DPR_IOCTL(("dgap_tty_ioctl end - cmd %s (%x), arg %lx\n", - dgap_ioctl_name(cmd), cmd, arg)); - - return(0); } |