diff options
| author | Martin Kaiser <martin@kaiser.cx> | 2014-10-28 18:51:01 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-03 12:53:05 -0200 |
| commit | 77d381af73e905c48b992d5d8426376469bc9576 (patch) | |
| tree | f957c84c6f10aed179e201ea1234e64825fd8e05 /include/media | |
| parent | 373145282ea61c2a01980914ee5bbff7cf62afd6 (diff) | |
| download | linux-77d381af73e905c48b992d5d8426376469bc9576.tar.bz2 | |
[media] lirc: use kfifo_initialized() on lirc_buffer's fifo
We can use kfifo_initialized() to check if the fifo in lirc_buffer is
initialized or not. There's no need to have a dedicated fifo status
variable in lirc_buffer.
[m.chehab@samsung.com: add the same change to lirc_zilog, to avoid
breaking compilation of staging drivers]
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/lirc_dev.h | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/include/media/lirc_dev.h b/include/media/lirc_dev.h index 78f0637ca68d..05e7ad5d2c8b 100644 --- a/include/media/lirc_dev.h +++ b/include/media/lirc_dev.h @@ -29,14 +29,13 @@ struct lirc_buffer { /* Using chunks instead of bytes pretends to simplify boundary checking * And should allow for some performance fine tunning later */ struct kfifo fifo; - u8 fifo_initialized; }; static inline void lirc_buffer_clear(struct lirc_buffer *buf) { unsigned long flags; - if (buf->fifo_initialized) { + if (kfifo_initialized(&buf->fifo)) { spin_lock_irqsave(&buf->fifo_lock, flags); kfifo_reset(&buf->fifo); spin_unlock_irqrestore(&buf->fifo_lock, flags); @@ -56,17 +55,14 @@ static inline int lirc_buffer_init(struct lirc_buffer *buf, buf->chunk_size = chunk_size; buf->size = size; ret = kfifo_alloc(&buf->fifo, size * chunk_size, GFP_KERNEL); - if (ret == 0) - buf->fifo_initialized = 1; return ret; } static inline void lirc_buffer_free(struct lirc_buffer *buf) { - if (buf->fifo_initialized) { + if (kfifo_initialized(&buf->fifo)) { kfifo_free(&buf->fifo); - buf->fifo_initialized = 0; } else WARN(1, "calling %s on an uninitialized lirc_buffer\n", __func__); |