Date: Thu, 24 May 2012 20:24:50 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r235930 - head/sys/dev/fdt Message-ID: <201205242024.q4OKOoFQ058472@svn.freebsd.org>
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Author: marcel Date: Thu May 24 20:24:49 2012 New Revision: 235930 URL: http://svn.freebsd.org/changeset/base/235930 Log: Preset (clear) the ranges we're supposed to fill from the FDT. If a particular range (either I/O memory or I/O port) is not defined in the FDT, we're not handing uninitialized structures back to our caller. Modified: head/sys/dev/fdt/fdt_pci.c Modified: head/sys/dev/fdt/fdt_pci.c ============================================================================== --- head/sys/dev/fdt/fdt_pci.c Thu May 24 20:12:46 2012 (r235929) +++ head/sys/dev/fdt/fdt_pci.c Thu May 24 20:24:49 2012 (r235930) @@ -100,6 +100,14 @@ fdt_pci_ranges_decode(phandle_t node, st size_cells); tuples = len / tuple_size; + /* + * Initialize the ranges so that we don't have to worry about + * having them all defined in the FDT. In particular, it is + * perfectly fine not to want I/O space on PCI busses. + */ + bzero(io_space, sizeof(*io_space)); + bzero(mem_space, sizeof(*mem_space)); + rangesptr = &ranges[0]; offset_cells = 0; for (i = 0; i < tuples; i++) {
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