diff options
Diffstat (limited to 'drivers/media/video/saa7164/saa7164-buffer.c')
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-buffer.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/media/video/saa7164/saa7164-buffer.c b/drivers/media/video/saa7164/saa7164-buffer.c index 6f58af44d02b..5fccecd588ce 100644 --- a/drivers/media/video/saa7164/saa7164-buffer.c +++ b/drivers/media/video/saa7164/saa7164-buffer.c @@ -265,3 +265,41 @@ int saa7164_buffer_cfg_port(struct saa7164_port *port) return 0; } +struct saa7164_user_buffer *saa7164_buffer_alloc_user(struct saa7164_dev *dev, u32 len) +{ + struct saa7164_user_buffer *buf; + + buf = kzalloc(sizeof(struct saa7164_user_buffer), GFP_KERNEL); + if (buf == 0) + return 0; + + buf->data = kzalloc(len, GFP_KERNEL); + + if (buf->data == 0) { + kfree(buf); + return 0; + } + + buf->actual_size = len; + buf->pos = 0; + + dprintk(DBGLVL_BUF, "%s() allocated user buffer @ 0x%p\n", + __func__, buf); + + return buf; +} + +void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf) +{ + if (!buf) + return; + + if (buf->data) { + kfree(buf->data); + buf->data = 0; + } + + if (buf) + kfree(buf); +} + |