diff options
Diffstat (limited to 'drivers/isdn/gigaset/isocdata.c')
| -rw-r--r-- | drivers/isdn/gigaset/isocdata.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c index a351c16705b..bc29f1d52a2 100644 --- a/drivers/isdn/gigaset/isocdata.c +++ b/drivers/isdn/gigaset/isocdata.c @@ -56,7 +56,7 @@ static inline int isowbuf_freebytes(struct isowbuf_t *iwb) /* start writing * acquire the write semaphore - * return true if acquired, false if busy + * return 0 if acquired, <0 if busy */ static inline int isowbuf_startwrite(struct isowbuf_t *iwb) { @@ -64,12 +64,12 @@ static inline int isowbuf_startwrite(struct isowbuf_t *iwb) atomic_inc(&iwb->writesem); gig_dbg(DEBUG_ISO, "%s: couldn't acquire iso write semaphore", __func__); - return 0; + return -EBUSY; } gig_dbg(DEBUG_ISO, "%s: acquired iso write semaphore, data[write]=%02x, nbits=%d", __func__, iwb->data[iwb->write], iwb->wbits); - return 1; + return 0; } /* finish writing @@ -158,7 +158,7 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size) /* no wraparound in valid data */ if (limit >= write) { /* append idle frame */ - if (!isowbuf_startwrite(iwb)) + if (isowbuf_startwrite(iwb) < 0) return -EBUSY; /* write position could have changed */ write = iwb->write; @@ -403,7 +403,7 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb, unsigned char c; if (isowbuf_freebytes(iwb) < count + count / 5 + 6 || - !isowbuf_startwrite(iwb)) { + isowbuf_startwrite(iwb) < 0) { gig_dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN", __func__, isowbuf_freebytes(iwb)); return -EAGAIN; @@ -457,7 +457,7 @@ static inline int trans_buildframe(struct isowbuf_t *iwb, return iwb->write; if (isowbuf_freebytes(iwb) < count || - !isowbuf_startwrite(iwb)) { + isowbuf_startwrite(iwb) < 0) { gig_dbg(DEBUG_ISO, "can't put %d bytes", count); return -EAGAIN; } |