diff options
Diffstat (limited to 'cmd/pci.c')
| -rw-r--r-- | cmd/pci.c | 16 |
1 files changed, 14 insertions, 2 deletions
@@ -358,6 +358,9 @@ static int pci_cfg_display(struct udevice *dev, ulong addr, if (length == 0) length = 0x40 / byte_size; /* Standard PCI config space */ + if (addr >= 4096) + return 1; + /* Print the lines. * once, and all accesses are with the specified bus width. */ @@ -378,7 +381,10 @@ static int pci_cfg_display(struct udevice *dev, ulong addr, rc = 1; break; } - } while (nbytes > 0); + } while (nbytes > 0 && addr < 4096); + + if (rc == 0 && nbytes > 0) + return 1; return (rc); } @@ -390,6 +396,9 @@ static int pci_cfg_modify(struct udevice *dev, ulong addr, ulong size, int nbytes; ulong val; + if (addr >= 4096) + return 1; + /* Print the address, followed by value. Then accept input for * the next value. A non-converted value exits. */ @@ -427,7 +436,10 @@ static int pci_cfg_modify(struct udevice *dev, ulong addr, ulong size, addr += size; } } - } while (nbytes); + } while (nbytes && addr < 4096); + + if (nbytes) + return 1; return 0; } |