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Message-ID: <202208211344.YIwVJkR3-lkp@intel.com>
Date: Mon, 22 Aug 2022 11:29:00 +0300
From: Dan Carpenter <dan.carpenter@...cle.com>
To: kbuild@...ts.01.org, Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: lkp@...el.com, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org,
Abhinav Kumar <quic_abhinavk@...cinc.com>
Subject: drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:1948
dpu_hw_catalog_init() warn: possible memory leak of 'dpu_cfg'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 15b3f48a4339e3c16acf18624e2b7f60bc5e9a2c
commit: de7d480f5e8ca6eace02a725abdadb9ea13294ef drm/msm/dpu: make dpu hardware catalog static const
config: microblaze-randconfig-m041-20220820 (https://download.01.org/0day-ci/archive/20220821/202208211344.YIwVJkR3-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
New smatch warnings:
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:1948 dpu_hw_catalog_init() warn: possible memory leak of 'dpu_cfg'
Old smatch warnings:
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:1953 dpu_hw_catalog_init() warn: possible memory leak of 'dpu_cfg'
vim +/dpu_cfg +1948 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
de7d480f5e8ca6 Dmitry Baryshkov 2022-06-02 1937 const struct dpu_mdss_cfg *dpu_hw_catalog_init(u32 hw_rev)
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1938 {
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1939 int i;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1940 struct dpu_mdss_cfg *dpu_cfg;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1941
de7d480f5e8ca6 Dmitry Baryshkov 2022-06-02 1942 dpu_cfg = kzalloc(sizeof(*dpu_cfg), GFP_KERNEL);
This allocation is never used
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1943 if (!dpu_cfg)
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1944 return ERR_PTR(-ENOMEM);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1945
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1946 for (i = 0; i < ARRAY_SIZE(cfg_handler); i++) {
de7d480f5e8ca6 Dmitry Baryshkov 2022-06-02 1947 if (cfg_handler[i].hw_rev == hw_rev)
de7d480f5e8ca6 Dmitry Baryshkov 2022-06-02 @1948 return cfg_handler[i].dpu_cfg;
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1949 }
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1950
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1951 DPU_ERROR("unsupported chipset id:%X\n", hw_rev);
3208496720a180 Dmitry Baryshkov 2022-06-02 1952
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1953 return ERR_PTR(-ENODEV);
25fdd5933e4c0f Jeykumar Sankaran 2018-06-27 1954 }
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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