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) | |||
| 265 | return 0; | 265 | return 0; |
| 266 | } | 266 | } |
| 267 | 267 | ||
| 268 | struct saa7164_user_buffer *saa7164_buffer_alloc_user(struct saa7164_dev *dev, u32 len) | ||
| 269 | { | ||
| 270 | struct saa7164_user_buffer *buf; | ||
| 271 | |||
| 272 | buf = kzalloc(sizeof(struct saa7164_user_buffer), GFP_KERNEL); | ||
| 273 | if (buf == 0) | ||
| 274 | return 0; | ||
| 275 | |||
| 276 | buf->data = kzalloc(len, GFP_KERNEL); | ||
| 277 | |||
| 278 | if (buf->data == 0) { | ||
| 279 | kfree(buf); | ||
| 280 | return 0; | ||
| 281 | } | ||
| 282 | |||
| 283 | buf->actual_size = len; | ||
| 284 | buf->pos = 0; | ||
| 285 | |||
| 286 | dprintk(DBGLVL_BUF, "%s() allocated user buffer @ 0x%p\n", | ||
| 287 | __func__, buf); | ||
| 288 | |||
| 289 | return buf; | ||
| 290 | } | ||
| 291 | |||
| 292 | void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf) | ||
| 293 | { | ||
| 294 | if (!buf) | ||
| 295 | return; | ||
| 296 | |||
| 297 | if (buf->data) { | ||
| 298 | kfree(buf->data); | ||
| 299 | buf->data = 0; | ||
| 300 | } | ||
| 301 | |||
| 302 | if (buf) | ||
| 303 | kfree(buf); | ||
| 304 | } | ||
| 305 | |||