diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2018-03-27 00:46:06 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2018-03-30 16:05:08 +0800 |
| commit | ee1109bb45be4aaf057a44a70c9bdf2d7ff5bbc7 (patch) | |
| tree | e4b4be886e2eea7a4e9f8daed18aea3c37f05103 /drivers/pci | |
| parent | 1eaf7800b6b99b48e73eab56202cf1c7a0e19ac9 (diff) | |
dm: pci: Avoid setting a PCI region that has 0 size
It makes no sense to set a PCI region that has 0 size.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-uclass.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 9d51236770..a2e829608a 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -897,8 +897,9 @@ static int decode_regions(struct pci_controller *hose, ofnode parent_node, #endif if (gd->pci_ram_top && gd->pci_ram_top < base + size) size = gd->pci_ram_top - base; - pci_set_region(hose->regions + hose->region_count++, base, base, - size, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + if (size) + pci_set_region(hose->regions + hose->region_count++, base, + base, size, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); #endif return 0; |