[greybus-dev] Re: [PATCH] greybus: audio_codec: initialize data to silence static checker warnings

On Tue, Mar 29, 2022 at 09:59:13AM +0800, Xiaomeng Tong wrote:

These three declares are here: struct gbaudio_data_connection *data;

Since all three of these functions check for if the codec->module_list is empty at the start of the function so these are not real bugs to bypass 'if (!data) {'. To avoid static checker warnings like Smatch, initialize the data with NULL.

Signed-off-by: Xiaomeng Tong xiam0nd.tong@gmail.com

drivers/staging/greybus/audio_codec.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c index b589cf6b1d03..939e05af4dcf 100644 --- a/drivers/staging/greybus/audio_codec.c +++ b/drivers/staging/greybus/audio_codec.c @@ -397,7 +397,7 @@ static int gbcodec_hw_params(struct snd_pcm_substream *substream, u8 sig_bits, channels; u32 format, rate; struct gbaudio_module_info *module;

• struct gbaudio_data_connection *data;

• struct gbaudio_data_connection *data = NULL; struct gb_bundle *bundle; struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev); struct gbaudio_stream_params *params;

@@ -498,7 +498,7 @@ static int gbcodec_prepare(struct snd_pcm_substream *substream, { int ret; struct gbaudio_module_info *module;

• struct gbaudio_data_connection *data;

• struct gbaudio_data_connection *data = NULL; struct gb_bundle *bundle; struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev); struct gbaudio_stream_params *params;

@@ -562,7 +562,7 @@ static int gbcodec_prepare(struct snd_pcm_substream *substream, static int gbcodec_mute_stream(struct snd_soc_dai *dai, int mute, int stream) { int ret;

• struct gbaudio_data_connection *data;

• struct gbaudio_data_connection *data = NULL; struct gbaudio_module_info *module; struct gb_bundle *bundle; struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev);

-- 2.17.1

Hi,

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