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authorJames Morris <james.l.morris@oracle.com>2017-11-29 12:47:41 +1100
committerJames Morris <james.l.morris@oracle.com>2017-11-29 12:47:41 +1100
commitcf40a76e7d5874bb25f4404eecc58a2e033af885 (patch)
tree8fd81cbea03c87b3d41d7ae5b1d11eadd35d6ef5 /drivers/media/dvb-core/dvb_ringbuffer.c
parentab5348c9c23cd253f5902980d2d8fe067dc24c82 (diff)
parent4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff)
Merge tag 'v4.15-rc1' into next-seccomp
Linux 4.15-rc1
Diffstat (limited to 'drivers/media/dvb-core/dvb_ringbuffer.c')
-rw-r--r--drivers/media/dvb-core/dvb_ringbuffer.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb-core/dvb_ringbuffer.c
index 2322af1b8742..53011629c9ad 100644
--- a/drivers/media/dvb-core/dvb_ringbuffer.c
+++ b/drivers/media/dvb-core/dvb_ringbuffer.c
@@ -66,12 +66,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_ringbuffer *rbuf)
{
ssize_t free;
- /* ACCESS_ONCE() to load read pointer on writer side
+ /* READ_ONCE() to load read pointer on writer side
* this pairs with smp_store_release() in dvb_ringbuffer_read(),
* dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(),
* or dvb_ringbuffer_reset()
*/
- free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite;
+ free = READ_ONCE(rbuf->pread) - rbuf->pwrite;
if (free <= 0)
free += rbuf->size;
return free-1;
@@ -143,7 +143,7 @@ ssize_t dvb_ringbuffer_read_user(struct dvb_ringbuffer *rbuf, u8 __user *buf, si
todo -= split;
/* smp_store_release() for read pointer update to ensure
* that buf is not overwritten until read is complete,
- * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+ * this pairs with READ_ONCE() in dvb_ringbuffer_free()
*/
smp_store_release(&rbuf->pread, 0);
}
@@ -168,7 +168,7 @@ void dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len)
todo -= split;
/* smp_store_release() for read pointer update to ensure
* that buf is not overwritten until read is complete,
- * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+ * this pairs with READ_ONCE() in dvb_ringbuffer_free()
*/
smp_store_release(&rbuf->pread, 0);
}