media: fix secfeed undefined when filter alloc fail

  In dvb_dmxdev_filter_start, when secfeed allocate secfilter fail.
  the secfeed of current dmxfilter, need set to NULL;
  Instead of call start_filtering, which already handled in
  dvb_dmxdev_feed_restart

Signed-off-by: jieqing.wang <standback@126.com>
Link: https://lore.kernel.org/r/20221201052705.2313911-1-standback@126.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index 9ce5f010de3f8462a30bb5818e5426f563a41972..6063782e937a65d140ab0128625eb8f6211eaf11 100644 (file)
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -731,7 +731,7 @@ static int dvb_dmxdev_filter_start(struct dmxdev_filter *filter)
                ret = (*secfeed)->allocate_filter(*secfeed, secfilter);
                if (ret < 0) {
                        dvb_dmxdev_feed_restart(filter);
-                       filter->feed.sec->start_filtering(*secfeed);
+                       *secfeed = NULL;
                        dprintk("could not get filter\n");
                        return ret;
                }