* drivers/gpu/drm/nouveau/nvif/vmm.c:222 nvif_vmm_ctor() warn: possible memory leak of 'args'
@ 2023-12-03 23:10 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-12-03 23:10 UTC (permalink / raw
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Danilo Krummrich <dakr@redhat.com>
CC: Dave Airlie <airlied@redhat.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 33cc938e65a98f1d29d0a18403dbbee050dcad9a
commit: 6b252cf42281045a9f803d2198023500cfa6ebd2 drm/nouveau: nvkm/vmm: implement raw ops to manage uvmm
date: 4 months ago
:::::: branch date: 13 hours ago
:::::: commit date: 4 months ago
config: i386-randconfig-141-20231105 (https://download.01.org/0day-ci/archive/20231204/202312040659.4pJpMafN-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231204/202312040659.4pJpMafN-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202312040659.4pJpMafN-lkp@intel.com/
smatch warnings:
drivers/gpu/drm/nouveau/nvif/vmm.c:222 nvif_vmm_ctor() warn: possible memory leak of 'args'
vim +/args +222 drivers/gpu/drm/nouveau/nvif/vmm.c
920d2b5ef2157e Ben Skeggs 2017-11-01 197
920d2b5ef2157e Ben Skeggs 2017-11-01 198 int
6b252cf4228104 Danilo Krummrich 2023-08-04 199 nvif_vmm_ctor(struct nvif_mmu *mmu, const char *name, s32 oclass,
6b252cf4228104 Danilo Krummrich 2023-08-04 200 enum nvif_vmm_type type, u64 addr, u64 size, void *argv, u32 argc,
6b252cf4228104 Danilo Krummrich 2023-08-04 201 struct nvif_vmm *vmm)
920d2b5ef2157e Ben Skeggs 2017-11-01 202 {
920d2b5ef2157e Ben Skeggs 2017-11-01 203 struct nvif_vmm_v0 *args;
920d2b5ef2157e Ben Skeggs 2017-11-01 204 u32 argn = sizeof(*args) + argc;
920d2b5ef2157e Ben Skeggs 2017-11-01 205 int ret = -ENOSYS, i;
920d2b5ef2157e Ben Skeggs 2017-11-01 206
920d2b5ef2157e Ben Skeggs 2017-11-01 207 vmm->object.client = NULL;
920d2b5ef2157e Ben Skeggs 2017-11-01 208 vmm->page = NULL;
920d2b5ef2157e Ben Skeggs 2017-11-01 209
920d2b5ef2157e Ben Skeggs 2017-11-01 210 if (!(args = kmalloc(argn, GFP_KERNEL)))
920d2b5ef2157e Ben Skeggs 2017-11-01 211 return -ENOMEM;
920d2b5ef2157e Ben Skeggs 2017-11-01 212 args->version = 0;
920d2b5ef2157e Ben Skeggs 2017-11-01 213 args->addr = addr;
920d2b5ef2157e Ben Skeggs 2017-11-01 214 args->size = size;
6b252cf4228104 Danilo Krummrich 2023-08-04 215
6b252cf4228104 Danilo Krummrich 2023-08-04 216 switch (type) {
6b252cf4228104 Danilo Krummrich 2023-08-04 217 case UNMANAGED: args->type = NVIF_VMM_V0_TYPE_UNMANAGED; break;
6b252cf4228104 Danilo Krummrich 2023-08-04 218 case MANAGED: args->type = NVIF_VMM_V0_TYPE_MANAGED; break;
6b252cf4228104 Danilo Krummrich 2023-08-04 219 case RAW: args->type = NVIF_VMM_V0_TYPE_RAW; break;
6b252cf4228104 Danilo Krummrich 2023-08-04 220 default:
6b252cf4228104 Danilo Krummrich 2023-08-04 221 WARN_ON(1);
6b252cf4228104 Danilo Krummrich 2023-08-04 @222 return -EINVAL;
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2023-12-03 23:10 drivers/gpu/drm/nouveau/nvif/vmm.c:222 nvif_vmm_ctor() warn: possible memory leak of 'args' kernel test robot
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