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SubjectRe: [PATCH] PCI Hotplug changes for 2.5.59
From
Date
ChangeSet 1.947.23.13, 2003/02/06 11:09:25+11:00, greg@kroah.com

[PATCH] Compaq PCI Hotplug: fix checker memory leak bugs.


diff -Nru a/drivers/hotplug/cpqphp_nvram.c b/drivers/hotplug/cpqphp_nvram.c
--- a/drivers/hotplug/cpqphp_nvram.c Thu Feb 6 14:51:17 2003
+++ b/drivers/hotplug/cpqphp_nvram.c Thu Feb 6 14:51:17 2003
@@ -473,7 +473,7 @@
p_byte += 3;

if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ return 2;

bus = p_ev_ctrl->bus;
device = p_ev_ctrl->device;
@@ -490,20 +490,20 @@
p_byte += 4;

if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ return 2;

// Skip forward to the next entry
p_byte += (nummem + numpmem + numio + numbus) * 8;

if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ return 2;

p_ev_ctrl = (struct ev_hrt_ctrl *) p_byte;

p_byte += 3;

if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ return 2;

bus = p_ev_ctrl->bus;
device = p_ev_ctrl->device;
@@ -518,7 +518,7 @@
p_byte += 4;

if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ return 2;

while (nummem--) {
mem_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
@@ -530,15 +530,19 @@
dbg("mem base = %8.8x\n",mem_node->base);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(mem_node);
+ return 2;
+ }

mem_node->length = *(u32*)p_byte;
dbg("mem length = %8.8x\n",mem_node->length);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(mem_node);
+ return 2;
+ }

mem_node->next = ctrl->mem_head;
ctrl->mem_head = mem_node;
@@ -554,15 +558,19 @@
dbg("pre-mem base = %8.8x\n",p_mem_node->base);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(p_mem_node);
+ return 2;
+ }

p_mem_node->length = *(u32*)p_byte;
dbg("pre-mem length = %8.8x\n",p_mem_node->length);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(p_mem_node);
+ return 2;
+ }

p_mem_node->next = ctrl->p_mem_head;
ctrl->p_mem_head = p_mem_node;
@@ -578,15 +586,19 @@
dbg("io base = %8.8x\n",io_node->base);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(io_node);
+ return 2;
+ }

io_node->length = *(u32*)p_byte;
dbg("io length = %8.8x\n",io_node->length);
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(io_node);
+ return 2;
+ }

io_node->next = ctrl->io_head;
ctrl->io_head = io_node;
@@ -601,15 +613,18 @@
bus_node->base = *(u32*)p_byte;
p_byte += 4;

- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(bus_node);
+ return 2;
+ }

bus_node->length = *(u32*)p_byte;
p_byte += 4;

-
- if (p_byte > ((u8*)p_EV_header + evbuffer_length))
- return(2);
+ if (p_byte > ((u8*)p_EV_header + evbuffer_length)) {
+ kfree(bus_node);
+ return 2;
+ }

bus_node->next = ctrl->bus_head;
ctrl->bus_head = bus_node;
@@ -623,13 +638,11 @@
rc &= cpqhp_resource_sort_and_combine(&(ctrl->io_head));
rc &= cpqhp_resource_sort_and_combine(&(ctrl->bus_head));

- if (rc) {
+ if (rc)
return(rc);
- }
} else {
- if ((evbuffer[0] != 0) && (!ctrl->push_flag)) {
- return(1);
- }
+ if ((evbuffer[0] != 0) && (!ctrl->push_flag))
+ return 1;
}

return 0;
-
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