diff options
| author | Stefan Reinauer <reinauer@google.com> | 2011-01-31 21:16:48 +0000 |
|---|---|---|
| committer | Marc Jones <marc.jones@amd.com> | 2011-01-31 21:16:48 +0000 |
| commit | aeead274a105058a6eb84e41cf6d8a32662a3e2c (patch) | |
| tree | f994df48f59fffeb8c264939f6606f38fe539cf5 | |
| parent | 38b1f3b772456a1b8ccdba97be3e6bac314a9788 (diff) | |
Fix an infinite loop in pnp_get_ioresource(), which freezes coreboot if
a rare condition arises.
Based on findings by Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Acked-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6323 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
| -rw-r--r-- | src/devices/pnp_device.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/devices/pnp_device.c b/src/devices/pnp_device.c index b2bca03232..a6d428abed 100644 --- a/src/devices/pnp_device.c +++ b/src/devices/pnp_device.c @@ -170,6 +170,12 @@ static void pnp_get_ioresource(device_t dev, u8 index, struct io_info *info) struct resource *resource; unsigned moving, gran, step; + if (!info->mask) { + printk(BIOS_ERR, "ERROR: device %s index %d has no mask.\n", + dev_path(dev), index); + return; + } + resource = new_resource(dev, index); /* Initilize the resource. */ |