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media: dmxdev: change the check for problems allocing secfeed

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While the logic there is right, it tricks static check analyzers,
like smatch:

	drivers/media/dvb-core/dmxdev.c:729 dvb_dmxdev_filter_start() error: we previously assumed '*secfeed' could be null (see line 719)

Because the implementation of the filter itself is made via
a callback, with its real implementation at the
dvbdmx_allocate_section_feed() inside dvb_demux.c.

So, change the check logic to make it clear that the function
will not try to use *secfeed == NULL.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2021-06-09 14:43:16 +02:00
parent 45040f6750
commit 3d42c93e5f
1 changed files with 1 additions and 1 deletions
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2
drivers/media/dvb-core/dmxdev.c
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@ -720,7 +720,7 @@ static int dvb_dmxdev_filter_start(struct dmxdev_filter *filter)
ret = dmxdev->demux->allocate_section_feed(dmxdev->demux,
secfeed,
dvb_dmxdev_section_callback);
if (ret < 0) {
if (!*secfeed) {
pr_err("DVB (%s): could not alloc feed\n",
__func__);
return ret;