diff options
Diffstat (limited to 'platform-intel.c')
| -rw-r--r-- | platform-intel.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/platform-intel.c b/platform-intel.c index d568ca6..30f7914 100644 --- a/platform-intel.c +++ b/platform-intel.c @@ -44,7 +44,7 @@ void free_sys_dev(struct sys_dev **list) struct sys_dev *find_driver_devices(const char *bus, const char *driver) { /* search sysfs for devices driven by 'driver' */ - char path[256]; + char path[292]; char link[256]; char *c; DIR *driver_dir; @@ -57,13 +57,17 @@ struct sys_dev *find_driver_devices(const char *bus, const char *driver) if (!driver_dir) return NULL; for (de = readdir(driver_dir); de; de = readdir(driver_dir)) { + int n; + /* is 'de' a device? check that the 'subsystem' link exists and * that its target matches 'bus' */ sprintf(path, "/sys/bus/%s/drivers/%s/%s/subsystem", bus, driver, de->d_name); - if (readlink(path, link, sizeof(link)) < 0) + n = readlink(path, link, sizeof(link)); + if (n < 0 || n >= sizeof(link)) continue; + link[n] = '\0'; c = strrchr(link, '/'); if (!c) continue; @@ -202,7 +206,7 @@ const struct imsm_orom *find_imsm_orom(void) char *devt_to_devpath(dev_t dev) { - char device[40]; + char device[46]; sprintf(device, "/sys/dev/block/%d:%d/device", major(dev), minor(dev)); return canonicalize_file_name(device); |