[media] pwc: Move various initialization to driver load and / or stream start
Doing a bunch of initialization every time /dev/video is opened, and thus
for example when the udev rules probe for capabilities makes no sense,
do it at driver load, resp. stream start instead.
This is a preparation patch for allowing multiple opens of the /dev/video
node.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pwc/pwc-dec1.c b/drivers/media/video/pwc/pwc-dec1.c
index c29593f..be0e02c 100644
--- a/drivers/media/video/pwc/pwc-dec1.c
+++ b/drivers/media/video/pwc/pwc-dec1.c
@@ -22,29 +22,19 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-
-
-
#include "pwc-dec1.h"
-
-void pwc_dec1_init(int type, int release, void *buffer, void *table)
+int pwc_dec1_init(struct pwc_device *pwc, int type, int release, void *buffer)
{
+ struct pwc_dec1_private *pdec;
-}
+ if (pwc->decompress_data == NULL) {
+ pdec = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
+ if (pdec == NULL)
+ return -ENOMEM;
+ pwc->decompress_data = pdec;
+ }
+ pdec = pwc->decompress_data;
-void pwc_dec1_exit(void)
-{
-
-
-
-}
-
-int pwc_dec1_alloc(struct pwc_device *pwc)
-{
- pwc->decompress_data = kmalloc(sizeof(struct pwc_dec1_private), GFP_KERNEL);
- if (pwc->decompress_data == NULL)
- return -ENOMEM;
return 0;
}
-