ASoC: Intel: bdw_rt286: add checks to avoid static analysis warnings
snd_soc_card_get_codec_dai() can return NULL, but that value is not
checked for, leading to false-positive static analysis warnings
sound/soc/intel/boards/bdw_rt286.c:190:16: error: dereference of NULL
‘codec_dai’ [CWE-476] [-Werror=analyzer-null-dereference]
190 | return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
‘card_suspend_pre’: event 1
|
| 190 | return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (1) dereference of NULL ‘codec_dai’
This NULL dereference cannot happen, the codec-dai "rt286-aif1" must exists
otherwise the card would not be created. Static analysis cannot know
that however so we might as well squelch this report.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Yaochun Hung <yc.hung@mediatek.com>
Link: https://lore.kernel.org/r/20230731213748.440285-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>