diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/agp/frontend.c | 1 | ||||
| -rw-r--r-- | drivers/char/random.c | 7 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_acpi.c | 4 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_ppi.c | 8 |
4 files changed, 11 insertions, 9 deletions
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c index 8121b4c70ede..b29703324e94 100644 --- a/drivers/char/agp/frontend.c +++ b/drivers/char/agp/frontend.c @@ -730,6 +730,7 @@ static int agpioc_info_wrap(struct agp_file_private *priv, void __user *arg) agp_copy_info(agp_bridge, &kerninfo); + memset(&userinfo, 0, sizeof(userinfo)); userinfo.version.major = kerninfo.version.major; userinfo.version.minor = kerninfo.version.minor; userinfo.bridge_id = kerninfo.device->vendor | diff --git a/drivers/char/random.c b/drivers/char/random.c index 6b75713d953a..102c50d38902 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -995,8 +995,11 @@ retry: ibytes = min_t(size_t, ibytes, have_bytes - reserved); if (ibytes < min) ibytes = 0; - entropy_count = max_t(int, 0, - entropy_count - (ibytes << (ENTROPY_SHIFT + 3))); + if (have_bytes >= ibytes + reserved) + entropy_count -= ibytes << (ENTROPY_SHIFT + 3); + else + entropy_count = reserved << (ENTROPY_SHIFT + 3); + if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) goto retry; diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index b9a57fa4b710..565a9478cb94 100644 --- a/drivers/char/tpm/tpm_acpi.c +++ b/drivers/char/tpm/tpm_acpi.c @@ -95,7 +95,7 @@ int read_log(struct tpm_bios_log *log) log->bios_event_log_end = log->bios_event_log + len; - virt = acpi_os_map_memory(start, len); + virt = acpi_os_map_iomem(start, len); if (!virt) { kfree(log->bios_event_log); printk("%s: ERROR - Unable to map memory\n", __func__); @@ -104,6 +104,6 @@ int read_log(struct tpm_bios_log *log) memcpy_fromio(log->bios_event_log, virt, len); - acpi_os_unmap_memory(virt, len); + acpi_os_unmap_iomem(virt, len); return 0; } diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index b3ea223585bd..61dcc8011ec7 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -328,13 +328,11 @@ int tpm_add_ppi(struct kobject *parent) /* Cache TPM ACPI handle and version string */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ppi_callback, NULL, NULL, &tpm_ppi_handle); - if (tpm_ppi_handle == NULL) - return -ENODEV; - - return sysfs_create_group(parent, &ppi_attr_grp); + return tpm_ppi_handle ? sysfs_create_group(parent, &ppi_attr_grp) : 0; } void tpm_remove_ppi(struct kobject *parent) { - sysfs_remove_group(parent, &ppi_attr_grp); + if (tpm_ppi_handle) + sysfs_remove_group(parent, &ppi_attr_grp); } |
