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| author | Thierry Reding <treding@nvidia.com> | 2014-11-12 18:26:48 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-11-23 06:49:01 -0500 |
| commit | 042b83d4c502d17db40f1fa4f6d9b6cb86c653d2 (patch) | |
| tree | 86cbfb791811558f5834e5570dec666e9bc8fe29 /common/cmd_pci.c | |
| parent | 1eebd14b79024f34925b79cb264242fac1bdc1b9 (diff) | |
| download | blackbird-obmc-uboot-042b83d4c502d17db40f1fa4f6d9b6cb86c653d2.tar.gz blackbird-obmc-uboot-042b83d4c502d17db40f1fa4f6d9b6cb86c653d2.zip | |
pci: Abort early if bus does not exist
When listing the devices on a PCI bus, the current code will blindly try
to access all devices. Internally this causes pci_bus_to_hose() to be
repeatedly called and output an error message every time. Prevent this
by calling pci_bus_to_hose() once and abort early if no bus was found.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/cmd_pci.c')
| -rw-r--r-- | common/cmd_pci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/common/cmd_pci.c b/common/cmd_pci.c index a1ba42e2f3..5a6048c926 100644 --- a/common/cmd_pci.c +++ b/common/cmd_pci.c @@ -42,12 +42,16 @@ void pci_header_show_brief(pci_dev_t dev); */ void pciinfo(int BusNum, int ShortPCIListing) { + struct pci_controller *hose = pci_bus_to_hose(BusNum); int Device; int Function; unsigned char HeaderType; unsigned short VendorID; pci_dev_t dev; + if (!hose) + return; + printf("Scanning PCI devices on bus %d\n", BusNum); if (ShortPCIListing) { |
