Re: [PATCH] PCI Hotplug changes for 2.5.59

From: Greg KH (greg@kroah.com)
Date: Wed Feb 05 2003 - 23:08:05 EST


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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This archive was generated by hypermail 2b29 : Fri Feb 07 2003 - 22:00:19 EST