Messages in this thread Patch in this message |  | | | Date | Wed, 3 Nov 2004 16:17:44 +0100 | | From | Dominik Brodowski <> | | Subject | Re: oops in 2.6.10-rc1-mm2 module_refcount |
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> Unable to handle kernel NULL pointer dereference at virtual address 000000a0 > printing eip: > c0146807 > *pde = 00000000 > Oops: 0000 [#1] > PREEMPT > Modules linked in: > CPU: 0 > EIP: 0060:[<c0146807>] Not tainted VLI > EFLAGS: 00010282 (2.6.10-rc1-mm2-pleiades) > EIP is at module_refcount+0x7/0x10
module_refcount() on non-modules fails [in contrary to try_module_get()], causing this bug when accessing /proc/bus/pccard/drivers and a pcmcia driver is built into the kernel.
Applies on top of - pcmcia-17-device-model-integration.patch - pcmcia-18a-client_t-and-pcmcia_device-integration.patch - pcmcia-18b-error-on-leftover-devices.patch - pcmcia-19-netdevice-integration.patch
Signed-off-by: Dominik Brodowski <linux@brodo.de>
--- linux/drivers/pcmcia/ds.c.original 2004-11-03 16:03:16.836857136 +0100 +++ linux/drivers/pcmcia/ds.c 2004-11-03 16:09:52.792662704 +0100 @@ -313,7 +313,7 @@ *p += sprintf(*p, "%-24.24s 1 %d\n", p_drv->drv.name, #ifdef CONFIG_MODULE_UNLOAD - module_refcount(p_drv->owner) + (p_drv->owner) ? module_refcount(p_drv->owner) : 1 #else 1 #endif - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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