Re: [PATCH] Reduce nr of ptr derefs in drivers/pci/hotplug/pciehp_core.c

From: Gregor Jasny
Date: Sun Dec 11 2005 - 08:09:02 EST


Jesper Juhl schrieb:
> --- linux-2.6.15-rc5-git1-orig/drivers/pci/hotplug/pciehp_core.c 2005-12-04 18:48:04.000000000 +0100
> +++ linux-2.6.15-rc5-git1/drivers/pci/hotplug/pciehp_core.c 2005-12-11 05:46:58.000000000 +0100
@@ -114,59 +117,66 @@ static int init_slots(struct controller
slot_number = ctrl->first_slot;

while (number_of_slots) {
- new_slot = kmalloc(sizeof(*new_slot), GFP_KERNEL);
- if (!new_slot)
+ slot = kmalloc(sizeof(*slot), GFP_KERNEL);
+ if (!slot)
goto error;

- memset(new_slot, 0, sizeof(struct slot));
- new_slot->hotplug_slot =
- kmalloc(sizeof(*(new_slot->hotplug_slot)),
+ memset(slot, 0, sizeof(struct slot));
+ slot->hotplug_slot =
+ kmalloc(sizeof(*(slot->hotplug_slot)),

Just one suggestion:

In your patches I've seen a lot of kmalloc + memset calls. Perhaps you
can convert them to kzalloc? This would improve readability even more.

Thanks,
Gregor
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