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SubjectRe: [PATCH v3 3/5] staging: vchiq: Move vchiq char driver to its own file
Hi Ojaswin,

url: https://github.com/0day-ci/linux/commits/Ojaswin-Mujoo/vchiq-Patch-to-separate-platform-and-cdev-code/20210705-000124
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 77ad1f0e99bd00af024e650b862cfda3137af660
config: i386-randconfig-m021-20210705 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c:1235 vchiq_release() warn: argument 3 to %lx specifier is cast from pointer

vim +1235 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c

62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1227 static int vchiq_release(struct inode *inode, struct file *file)
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1228 {
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1229 struct vchiq_instance *instance = file->private_data;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1230 struct vchiq_state *state = vchiq_get_state();
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1231 struct vchiq_service *service;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1232 int ret = 0;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1233 int i;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1234
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 @1235 vchiq_log_info(vchiq_arm_log_level, "%s: instance=%lx", __func__,
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1236 (unsigned long)instance);

This should eventually be converted to %p so it doesn't defeat KASLR.
(Not that we really care on raspberry pi, I think?)

62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1237
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1238 if (!state) {
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1239 ret = -EPERM;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1240 goto out;
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1241 }
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1242
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1243 /* Ensure videocore is awake to allow termination. */
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1244 vchiq_use_internal(instance->state, NULL, USE_TYPE_VCHIQ);
62b5eb4fdf3f5f Ojaswin Mujoo 2021-07-04 1245

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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