Patch(2.5.51): __pnp_add_device dereferenced bad pointer

Adam J. Richter (adam@yggdrasil.com)
Sun, 15 Dec 2002 02:58:27 -0800


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__pnp_add_device dereferences a bad pointer when it traverses
the dev->id chain, because id->next is not initialized in certain cases,
causing my Sony Picturebook pcg-c1vn to crash at boot. Here is a patch.

-- 
Adam J. Richter     __     ______________   575 Oroville Road
adam@yggdrasil.com     \ /                  Milpitas, California 95035
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--- linux-2.5.51/drivers/pnp/driver.c 2002-12-09 18:46:14.000000000 -0800 +++ linux/drivers/pnp/driver.c 2002-12-15 02:52:47.000000000 -0800 @@ -164,6 +164,7 @@ return -EINVAL; if (!dev) return -EINVAL; + id->next = NULL; ptr = dev->id; while (ptr && ptr->next) ptr = ptr->next;

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