compile tested only.
btw... why dont we wrap malloc to automatically include these checks?
there is probably a patch somewhere that adds totally awesome shutdown code in OOM cases,
but afaics we just print a warning and exit right now... it is just stupid to do the checks in the real
code then.
Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at>
---
flashrom.c | 12 ++++++++++++
hwaccess.c | 4 ++++
pcidev.c | 4 ++++
serial.c | 2 ++
4 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/flashrom.c b/flashrom.c
index 12a51ad..a41d0c9 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -1515,6 +1515,10 @@ int erase_and_write_flash(struct flashchip *flash, uint8_t *oldcontents, uint8_t
msg_cinfo("Erasing and writing flash chip... ");
curcontents = (uint8_t *) malloc(size);
+ if (!curcontents) {
+ msg_gerr("Out of memory!\n");
+ exit(1);
+ }
/* Copy oldcontents to curcontents to avoid clobbering oldcontents. */
memcpy(curcontents, oldcontents, size);
@@ -1882,9 +1886,17 @@ int doit(struct flashchip *flash, int force, const char *filename, int read_it,
}
oldcontents = (uint8_t *) malloc(size);
+ if (!oldcontents) {
+ msg_gerr("Out of memory!\n");
+ exit(1);
+ }
/* Assume worst case: All bits are 0. */
memset(oldcontents, 0x00, size);
newcontents = (uint8_t *) malloc(size);
+ if (!newcontents) {
+ msg_gerr("Out of memory!\n");
+ exit(1);
+ }
/* Assume best case: All bits should be 1. */
memset(newcontents, 0xff, size);
/* Side effect of the assumptions above: Default write action is erase
diff --git a/hwaccess.c b/hwaccess.c
index efe8bb0..8c89925 100644
--- a/hwaccess.c
+++ b/hwaccess.c
@@ -226,6 +226,10 @@ int undo_mmio_write(void *p)
{ \
struct undo_mmio_write_data *undo_mmio_write_data; \
undo_mmio_write_data = malloc(sizeof(struct undo_mmio_write_data)); \
+ if (!undo_mmio_write_data) { \
+ msg_gerr("Out of memory!\n"); \
+ exit(1); \
+ } \
undo_mmio_write_data->addr = a; \
undo_mmio_write_data->type = mmio_write_type_##c; \
undo_mmio_write_data->c##data = mmio_read##c(a); \
diff --git a/pcidev.c b/pcidev.c
index 1f9a5cc..d4ad8bc 100644
--- a/pcidev.c
+++ b/pcidev.c
@@ -295,6 +295,10 @@ int undo_pci_write(void *p)
{ \
struct undo_pci_write_data *undo_pci_write_data; \
undo_pci_write_data = malloc(sizeof(struct undo_pci_write_data)); \
+ if (!undo_pci_write_data) { \
+ msg_gerr("Out of memory!\n"); \
+ exit(1); \
+ } \
undo_pci_write_data->dev = *a; \
undo_pci_write_data->reg = b; \
undo_pci_write_data->type = pci_write_type_##c; \
diff --git a/serial.c b/serial.c
index 37ea422..31d76e3 100644
--- a/serial.c
+++ b/serial.c
@@ -110,6 +110,8 @@ fdtype sp_openserport(char *dev, unsigned int baud)
(tolower((unsigned char)dev[1]) == 'o') &&
(tolower((unsigned char)dev[2]) == 'm')) {
dev2 = malloc(strlen(dev) + 5);
+ if (!dev2)
+ sp_die("Error: Out of memory");
strcpy(dev2, "\\\\.\\");
strcpy(dev2 + 4, dev);
}
--
1.7.1