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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
This commit is contained in:
Stefan Reinauer 2011-01-31 21:16:48 +00:00 committed by Marc Jones
parent 38b1f3b772
commit aeead274a1
1 changed files with 6 additions and 0 deletions
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6
src/devices/pnp_device.c
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@ -170,6 +170,12 @@ static void pnp_get_ioresource(device_t dev, u8 index, struct io_info *info)
struct resource *resource; struct resource *resource;
unsigned moving, gran, step; 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); resource = new_resource(dev, index);
/* Initilize the resource. */ /* Initilize the resource. */