Hello Jeeja KP,
This is a semi-automatic email about new static checker warnings.
The patch a40e693c7f5e: "ASoC: Intel: Add Skylake HDA platform driver" from Jul 9, 2015, leads to the following Smatch complaint:
sound/soc/intel/skylake/skl-pcm.c:802 skl_get_position() warn: variable dereferenced before check 'substream->runtime' (see line 792)
sound/soc/intel/skylake/skl-pcm.c 791 struct snd_pcm_substream *substream = hstr->substream; 792 struct hdac_ext_bus *ebus = get_bus_ctx(substream); ^^^^^^^^^^^^^^^^^^^^^^ Dereference inside function.
793 unsigned int pos; 794 int delay; 795 796 /* use the position buffer as default */ 797 pos = snd_hdac_stream_get_pos_posbuf(hdac_stream(hstream)); 798 799 if (pos >= hdac_stream(hstream)->bufsize) 800 pos = 0; 801 802 if (substream->runtime) { ^^^^^^^^^^^^^^^^^^ Checked too late.
803 delay = skl_get_delay_from_lpib(ebus, hstream, pos) 804 + codec_delay;
regards, dan carpenter