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path: root/drivers/isdn/gigaset/isocdata.c
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Diffstat (limited to 'drivers/isdn/gigaset/isocdata.c')
-rw-r--r--drivers/isdn/gigaset/isocdata.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index a351c16705bd..bc29f1d52a2f 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;
}