CC: [email protected]
CC: [email protected]
TO: Qiuxu Zhuo <[email protected]>
CC: Tony Luck <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   2b14864acbaaf03d9c01982e243a84632524c3ac
commit: c945088384d00e6eb61535cc4ba25bc062090909 EDAC/i10nm: Add support for 
high bandwidth memory
date:   6 months ago
:::::: branch date: 7 hours ago
:::::: commit date: 6 months ago
config: x86_64-randconfig-m001-20211215 
(https://download.01.org/0day-ci/archive/20211216/[email protected]/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 <[email protected]>
Reported-by: Dan Carpenter <[email protected]>

smatch warnings:
drivers/edac/i10nm_base.c:256 i10nm_get_hbm_munits() warn: 'mbase' not released 
on lines: 249.

vim +/mbase +256 drivers/edac/i10nm_base.c

c945088384d00e Qiuxu Zhuo 2021-06-11  186  
c945088384d00e Qiuxu Zhuo 2021-06-11  187  static int i10nm_get_hbm_munits(void)
c945088384d00e Qiuxu Zhuo 2021-06-11  188  {
c945088384d00e Qiuxu Zhuo 2021-06-11  189       struct pci_dev *mdev;
c945088384d00e Qiuxu Zhuo 2021-06-11  190       void __iomem *mbase;
c945088384d00e Qiuxu Zhuo 2021-06-11  191       u32 reg, off, mcmtr;
c945088384d00e Qiuxu Zhuo 2021-06-11  192       struct skx_dev *d;
c945088384d00e Qiuxu Zhuo 2021-06-11  193       int i, lmc;
c945088384d00e Qiuxu Zhuo 2021-06-11  194       u64 base;
c945088384d00e Qiuxu Zhuo 2021-06-11  195  
c945088384d00e Qiuxu Zhuo 2021-06-11  196       list_for_each_entry(d, 
i10nm_edac_list, list) {
c945088384d00e Qiuxu Zhuo 2021-06-11  197               d->pcu_cr3 = 
pci_get_dev_wrapper(d->seg, d->bus[1], 30, 3);
c945088384d00e Qiuxu Zhuo 2021-06-11  198               if (!d->pcu_cr3)
c945088384d00e Qiuxu Zhuo 2021-06-11  199                       return -ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  200  
c945088384d00e Qiuxu Zhuo 2021-06-11  201               if 
(!i10nm_check_hbm_imc(d)) {
c945088384d00e Qiuxu Zhuo 2021-06-11  202                       
i10nm_printk(KERN_DEBUG, "No hbm memory\n");
c945088384d00e Qiuxu Zhuo 2021-06-11  203                       return -ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  204               }
c945088384d00e Qiuxu Zhuo 2021-06-11  205  
c945088384d00e Qiuxu Zhuo 2021-06-11  206               if 
(I10NM_GET_SCK_BAR(d, reg)) {
c945088384d00e Qiuxu Zhuo 2021-06-11  207                       
i10nm_printk(KERN_ERR, "Failed to get socket bar\n");
c945088384d00e Qiuxu Zhuo 2021-06-11  208                       return -ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  209               }
c945088384d00e Qiuxu Zhuo 2021-06-11  210               base = 
I10NM_GET_SCK_MMIO_BASE(reg);
c945088384d00e Qiuxu Zhuo 2021-06-11  211  
c945088384d00e Qiuxu Zhuo 2021-06-11  212               if 
(I10NM_GET_HBM_IMC_BAR(d, reg)) {
c945088384d00e Qiuxu Zhuo 2021-06-11  213                       
i10nm_printk(KERN_ERR, "Failed to get hbm mc bar\n");
c945088384d00e Qiuxu Zhuo 2021-06-11  214                       return -ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  215               }
c945088384d00e Qiuxu Zhuo 2021-06-11  216               base += 
I10NM_GET_HBM_IMC_MMIO_OFFSET(reg);
c945088384d00e Qiuxu Zhuo 2021-06-11  217  
c945088384d00e Qiuxu Zhuo 2021-06-11  218               lmc = I10NM_NUM_DDR_IMC;
c945088384d00e Qiuxu Zhuo 2021-06-11  219  
c945088384d00e Qiuxu Zhuo 2021-06-11  220               for (i = 0; i < 
I10NM_NUM_HBM_IMC; i++) {
c945088384d00e Qiuxu Zhuo 2021-06-11  221                       mdev = 
pci_get_dev_wrapper(d->seg, d->bus[0],
c945088384d00e Qiuxu Zhuo 2021-06-11  222                                       
           12 + i / 4, 1 + i % 4);
c945088384d00e Qiuxu Zhuo 2021-06-11  223                       if (i == 0 && 
!mdev) {
c945088384d00e Qiuxu Zhuo 2021-06-11  224                               
i10nm_printk(KERN_ERR, "No hbm mc found\n");
c945088384d00e Qiuxu Zhuo 2021-06-11  225                               return 
-ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  226                       }
c945088384d00e Qiuxu Zhuo 2021-06-11  227                       if (!mdev)
c945088384d00e Qiuxu Zhuo 2021-06-11  228                               
continue;
c945088384d00e Qiuxu Zhuo 2021-06-11  229  
c945088384d00e Qiuxu Zhuo 2021-06-11  230                       
d->imc[lmc].mdev = mdev;
c945088384d00e Qiuxu Zhuo 2021-06-11  231                       off = i * 
I10NM_HBM_IMC_MMIO_SIZE;
c945088384d00e Qiuxu Zhuo 2021-06-11  232  
c945088384d00e Qiuxu Zhuo 2021-06-11  233                       edac_dbg(2, 
"hbm mc%d mmio base 0x%llx size 0x%x\n",
c945088384d00e Qiuxu Zhuo 2021-06-11  234                                lmc, 
base + off, I10NM_HBM_IMC_MMIO_SIZE);
c945088384d00e Qiuxu Zhuo 2021-06-11  235  
c945088384d00e Qiuxu Zhuo 2021-06-11  236                       mbase = 
ioremap(base + off, I10NM_HBM_IMC_MMIO_SIZE);
c945088384d00e Qiuxu Zhuo 2021-06-11  237                       if (!mbase) {
c945088384d00e Qiuxu Zhuo 2021-06-11  238                               
i10nm_printk(KERN_ERR, "Failed to ioremap for hbm mc 0x%llx\n",
c945088384d00e Qiuxu Zhuo 2021-06-11  239                                       
     base + off);
c945088384d00e Qiuxu Zhuo 2021-06-11  240                               return 
-ENOMEM;
c945088384d00e Qiuxu Zhuo 2021-06-11  241                       }
c945088384d00e Qiuxu Zhuo 2021-06-11  242  
c945088384d00e Qiuxu Zhuo 2021-06-11  243                       
d->imc[lmc].mbase = mbase;
c945088384d00e Qiuxu Zhuo 2021-06-11  244                       
d->imc[lmc].hbm_mc = true;
c945088384d00e Qiuxu Zhuo 2021-06-11  245  
c945088384d00e Qiuxu Zhuo 2021-06-11  246                       mcmtr = 
I10NM_GET_MCMTR(&d->imc[lmc], 0);
c945088384d00e Qiuxu Zhuo 2021-06-11  247                       if 
(!I10NM_IS_HBM_IMC(mcmtr)) {
c945088384d00e Qiuxu Zhuo 2021-06-11  248                               
i10nm_printk(KERN_ERR, "This isn't an hbm mc!\n");
c945088384d00e Qiuxu Zhuo 2021-06-11  249                               return 
-ENODEV;
c945088384d00e Qiuxu Zhuo 2021-06-11  250                       }
c945088384d00e Qiuxu Zhuo 2021-06-11  251  
c945088384d00e Qiuxu Zhuo 2021-06-11  252                       lmc++;
c945088384d00e Qiuxu Zhuo 2021-06-11  253               }
c945088384d00e Qiuxu Zhuo 2021-06-11  254       }
c945088384d00e Qiuxu Zhuo 2021-06-11  255  
c945088384d00e Qiuxu Zhuo 2021-06-11 @256       return 0;
c945088384d00e Qiuxu Zhuo 2021-06-11  257  }
c945088384d00e Qiuxu Zhuo 2021-06-11  258  

---
0-DAY CI Kernel Test Service, Intel Corporation
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