diff options
Diffstat (limited to 'drivers/cxl/pci.c')
| -rw-r--r-- | drivers/cxl/pci.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c index 193983e6edce..90a1c895e442 100644 --- a/drivers/cxl/pci.c +++ b/drivers/cxl/pci.c @@ -1118,14 +1118,6 @@ static int cxl_mem_setup_regs(struct cxl_mem *cxlm) u64 offset; u8 bar; - map = kzalloc(sizeof(*map), GFP_KERNEL); - if (!map) { - ret = -ENOMEM; - goto free_maps; - } - - list_add(&map->list, ®ister_maps); - pci_read_config_dword(pdev, regloc, ®_lo); pci_read_config_dword(pdev, regloc + 4, ®_hi); @@ -1135,6 +1127,18 @@ static int cxl_mem_setup_regs(struct cxl_mem *cxlm) dev_dbg(dev, "Found register block in bar %u @ 0x%llx of type %u\n", bar, offset, reg_type); + /* Ignore unknown register block types */ + if (reg_type > CXL_REGLOC_RBI_MEMDEV) + continue; + + map = kzalloc(sizeof(*map), GFP_KERNEL); + if (!map) { + ret = -ENOMEM; + goto free_maps; + } + + list_add(&map->list, ®ister_maps); + base = cxl_mem_map_regblock(cxlm, bar, offset); if (!base) { ret = -ENOMEM; |