drivers/net/wwan/iosm/iosm_ipc_mux_codec.c:833:21: sparse: sparse: Using plain integer as NULL pointer

kernel test robot
2022-06-05T04:05:34Z

head: d0e60d46bc03252b8d4ffaaaa0b371970ac16cda
commit: 89212e160b81e778f829b89743570665810e3b13 net: wwan: Fix WWAN config symbols
date: 12 months ago
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220605/202206051123.UxnYthu7-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-18-g56afb504-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=89212e160b81e778f829b89743570665810e3b13
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 89212e160b81e778f829b89743570665810e3b13
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/ samples//