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authorStefan Reinauer <stepan@coresystems.de>2009-07-31 11:39:55 +0000
committerStefan Reinauer <stepan@openbios.org>2009-07-31 11:39:55 +0000
commit5fe6e23c61bf1fde7a1a0568b38d32c4e625f0ef (patch)
tree74ab1bde640908166368985f9598517756df3199 /payloads/libpayload
parent131c0070a3b224e8ec2c817444f1ae4cf2419193 (diff)
downloadcoreboot-5fe6e23c61bf1fde7a1a0568b38d32c4e625f0ef.tar.xz
Catch various cases in libpayload where malloc() or memalign() return NULL
Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4474 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload')
-rw-r--r--payloads/libpayload/drivers/usb/uhci.c22
-rw-r--r--payloads/libpayload/drivers/usb/uhci_rh.c3
-rw-r--r--payloads/libpayload/drivers/usb/usb.c23
-rw-r--r--payloads/libpayload/drivers/usb/usbhid.c2
-rw-r--r--payloads/libpayload/drivers/usb/usbhub.c6
-rw-r--r--payloads/libpayload/drivers/usb/usbmsc.c3
-rw-r--r--payloads/libpayload/include/usb/usb.h2
-rw-r--r--payloads/libpayload/libc/lar.c4
-rw-r--r--payloads/libpayload/libc/malloc.c2
-rw-r--r--payloads/libpayload/libc/readline.c2
10 files changed, 62 insertions, 7 deletions
diff --git a/payloads/libpayload/drivers/usb/uhci.c b/payloads/libpayload/drivers/usb/uhci.c
index 198b6c0846..def6b45084 100644
--- a/payloads/libpayload/drivers/usb/uhci.c
+++ b/payloads/libpayload/drivers/usb/uhci.c
@@ -130,7 +130,13 @@ uhci_init (pcidev_t addr)
int i;
hci_t *controller = new_controller ();
+ if (!controller)
+ usb_fatal("Could not create USB controller instance.\n");
+
controller->instance = malloc (sizeof (uhci_t));
+ if(!controller->instance)
+ usb_fatal("Not enough memory creating USB controller instance.\n");
+
controller->start = uhci_start;
controller->stop = uhci_stop;
controller->reset = uhci_reset;
@@ -157,6 +163,9 @@ uhci_init (pcidev_t addr)
pci_write_config32 (controller->bus_address, 0xc0, 0x8f00);
UHCI_INST (controller)->framelistptr = memalign (0x1000, 1024 * sizeof (flistp_t *)); /* 4kb aligned to 4kb */
+ if (! UHCI_INST (controller)->framelistptr)
+ usb_fatal("Not enough memory for USB frame list pointer.\n");
+
memset (UHCI_INST (controller)->framelistptr, 0,
1024 * sizeof (flistp_t));
@@ -168,6 +177,8 @@ uhci_init (pcidev_t addr)
for some reason. Not a problem now.
*/
td_t *antiberserk = memalign(16, sizeof(td_t));
+ if (!antiberserk)
+ usb_fatal("Not enough memory for chipset workaround.\n");
memset(antiberserk, 0, sizeof(td_t));
UHCI_INST (controller)->qh_prei = memalign (16, sizeof (qh_t));
@@ -175,6 +186,12 @@ uhci_init (pcidev_t addr)
UHCI_INST (controller)->qh_data = memalign (16, sizeof (qh_t));
UHCI_INST (controller)->qh_last = memalign (16, sizeof (qh_t));
+ if (! UHCI_INST (controller)->qh_prei ||
+ ! UHCI_INST (controller)->qh_intr ||
+ ! UHCI_INST (controller)->qh_data ||
+ ! UHCI_INST (controller)->qh_last)
+ usb_fatal ("Not enough memory for USB controller queues.\n");
+
UHCI_INST (controller)->qh_prei->headlinkptr.ptr =
virt_to_phys (UHCI_INST (controller)->qh_intr);
UHCI_INST (controller)->qh_prei->headlinkptr.queue_head = 1;
@@ -508,11 +525,16 @@ uhci_create_intr_queue (endpoint_t *ep, int reqsize, int reqcount, int reqtiming
td_t *tds = memalign(16, sizeof(td_t) * reqcount);
qh_t *qh = memalign(16, sizeof(qh_t));
+ if (!data || !tds || !qh)
+ usb_fatal ("Not enough memory to create USB intr queue prerequisites.\n");
+
qh->elementlinkptr.ptr = virt_to_phys(tds);
qh->elementlinkptr.queue_head = 0;
qh->elementlinkptr.terminate = 0;
intr_q *q = malloc(sizeof(intr_q));
+ if (!q)
+ usb_fatal ("Not enough memory to create USB intr queue.\n");
q->qh = qh;
q->tds = tds;
q->data = data;
diff --git a/payloads/libpayload/drivers/usb/uhci_rh.c b/payloads/libpayload/drivers/usb/uhci_rh.c
index cc3c600289..2f4c7d839c 100644
--- a/payloads/libpayload/drivers/usb/uhci_rh.c
+++ b/payloads/libpayload/drivers/usb/uhci_rh.c
@@ -157,6 +157,9 @@ uhci_rh_init (usbdev_t *dev)
uhci_rh_enable_port (dev, 1);
uhci_rh_enable_port (dev, 2);
dev->data = malloc (sizeof (rh_inst_t));
+ if (!dev->data)
+ usb_fatal ("Not enough memory for UHCI RH.\n");
+
RH_INST (dev)->port[0] = -1;
RH_INST (dev)->port[1] = -1;
diff --git a/payloads/libpayload/drivers/usb/usb.c b/payloads/libpayload/drivers/usb/usb.c
index d536d31d86..25e80065d7 100644
--- a/payloads/libpayload/drivers/usb/usb.c
+++ b/payloads/libpayload/drivers/usb/usb.c
@@ -33,14 +33,16 @@
hci_t *usb_hcs = 0;
hci_t *
-new_controller ()
+new_controller (void)
{
hci_t *controller = malloc (sizeof (hci_t));
- /* atomic */
- controller->next = usb_hcs;
- usb_hcs = controller;
- /* atomic end */
+ if (controller) {
+ /* atomic */
+ controller->next = usb_hcs;
+ usb_hcs = controller;
+ /* atomic end */
+ }
return controller;
}
@@ -48,13 +50,13 @@ new_controller ()
void
detach_controller (hci_t *controller)
{
- if (controller == 0)
+ if (controller == NULL)
return;
if (usb_hcs == controller) {
usb_hcs = controller->next;
} else {
hci_t *it = usb_hcs;
- while (it != 0) {
+ while (it != NULL) {
if (it->next == controller) {
it->next = controller->next;
return;
@@ -386,3 +388,10 @@ usb_attach_device(hci_t *controller, int hubaddress, int port, int lowspeed)
newdev_t->init (newdev_t);
return newdev;
}
+
+void
+usb_fatal (const char *message)
+{
+ printf(message);
+ for (;;) ;
+}
diff --git a/payloads/libpayload/drivers/usb/usbhid.c b/payloads/libpayload/drivers/usb/usbhid.c
index 44be9ce8d9..ee217c36d8 100644
--- a/payloads/libpayload/drivers/usb/usbhid.c
+++ b/payloads/libpayload/drivers/usb/usbhid.c
@@ -169,6 +169,8 @@ usb_hid_init (usbdev_t *dev)
boot_protos[interface->bInterfaceProtocol]);
if (interface->bInterfaceProtocol == hid_boot_proto_keyboard) {
dev->data = malloc (sizeof (usbhid_inst_t));
+ if (!dev->data)
+ usb_fatal("Not enough memory for USB HID device.\n");
printf (" configuring...\n");
usb_hid_set_protocol(dev, interface, hid_proto_boot);
usb_hid_set_idle(dev, interface, 0);
diff --git a/payloads/libpayload/drivers/usb/usbhub.c b/payloads/libpayload/drivers/usb/usbhub.c
index 4625246e22..0a5d0ebcb5 100644
--- a/payloads/libpayload/drivers/usb/usbhub.c
+++ b/payloads/libpayload/drivers/usb/usbhub.c
@@ -128,6 +128,9 @@ usb_hub_init (usbdev_t *dev)
dev->data = malloc (sizeof (usbhub_inst_t));
+ if (!dev->data)
+ usb_fatal("Not enough memory for USB hub.\n");
+
HUB_INST (dev)->descriptor =
(hub_descriptor_t *) get_descriptor (dev,
gen_bmRequestType
@@ -137,6 +140,9 @@ usb_hub_init (usbdev_t *dev)
HUB_INST (dev)->num_ports = HUB_INST (dev)->descriptor->bNbrPorts;
HUB_INST (dev)->ports =
malloc (sizeof (int) * (HUB_INST (dev)->num_ports + 1));
+ if (! HUB_INST (dev)->ports)
+ usb_fatal("Not enough memory for USB hub ports.\n");
+
for (i = 1; i <= HUB_INST (dev)->num_ports; i++)
HUB_INST (dev)->ports[i] = -1;
for (i = 1; i <= HUB_INST (dev)->num_ports; i++)
diff --git a/payloads/libpayload/drivers/usb/usbmsc.c b/payloads/libpayload/drivers/usb/usbmsc.c
index ad4a10c146..f24bd6d857 100644
--- a/payloads/libpayload/drivers/usb/usbmsc.c
+++ b/payloads/libpayload/drivers/usb/usbmsc.c
@@ -346,6 +346,9 @@ usb_msc_init (usbdev_t *dev)
}
dev->data = malloc (sizeof (usbmsc_inst_t));
+ if (!dev->data)
+ usb_fatal("Not enough memory for USB MSC device.\n");
+
MSC_INST (dev)->bulk_in = 0;
MSC_INST (dev)->bulk_out = 0;
diff --git a/payloads/libpayload/include/usb/usb.h b/payloads/libpayload/include/usb/usb.h
index d06e8077db..9f38b845dd 100644
--- a/payloads/libpayload/include/usb/usb.h
+++ b/payloads/libpayload/include/usb/usb.h
@@ -226,4 +226,6 @@ gen_bmRequestType (dev_req_dir dir, dev_req_type type, dev_req_recp recp)
void usb_detach_device(hci_t *controller, int devno);
int usb_attach_device(hci_t *controller, int hubaddress, int port, int lowspeed);
+
+void usb_fatal(const char *message) __attribute__ ((noreturn));
#endif
diff --git a/payloads/libpayload/libc/lar.c b/payloads/libpayload/libc/lar.c
index 225b19001a..9ee09e2ec6 100644
--- a/payloads/libpayload/libc/lar.c
+++ b/payloads/libpayload/libc/lar.c
@@ -113,6 +113,10 @@ struct LAR *openlar(void *addr)
* tear on the heap */
lar->headers = malloc(16 * sizeof(void *));
+
+ if (!lar->headers)
+ return NULL;
+
lar->alloc = 16;
lar->count = lar->eof = 0;
lar->cindex = 0;
diff --git a/payloads/libpayload/libc/malloc.c b/payloads/libpayload/libc/malloc.c
index d18b289adf..4cb71f6ff4 100644
--- a/payloads/libpayload/libc/malloc.c
+++ b/payloads/libpayload/libc/malloc.c
@@ -309,6 +309,8 @@ void *memalign(size_t align, size_t size)
if (size == 0) return 0;
if (align_regions == 0) {
align_regions = malloc(sizeof(struct align_region_t));
+ if (align_regions == NULL)
+ return NULL;
memset(align_regions, 0, sizeof(struct align_region_t));
}
struct align_region_t *reg = align_regions;
diff --git a/payloads/libpayload/libc/readline.c b/payloads/libpayload/libc/readline.c
index 01a565a698..9387e09149 100644
--- a/payloads/libpayload/libc/readline.c
+++ b/payloads/libpayload/libc/readline.c
@@ -55,6 +55,8 @@ char *readline(const char *prompt)
if (!readline_buffer || !readline_bufferlen) {
#define READLINE_BUFFERSIZE 256
readline_buffer = malloc(READLINE_BUFFERSIZE);
+ if (!readline_buffer)
+ return NULL;
readline_bufferlen = READLINE_BUFFERSIZE;
memset(readline_buffer, 0, readline_bufferlen);
}