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-rw-r--r--drivers/char/hw_random/mtk-rng.c4
-rw-r--r--drivers/char/ipmi/ipmb_dev_int.c3
-rw-r--r--drivers/char/ipmi/ipmi_msghandler.c11
-rw-r--r--drivers/char/ipmi/ipmi_watchdog.c59
-rw-r--r--drivers/char/ipmi/ssif_bmc.c5
-rw-r--r--drivers/char/misc.c45
-rw-r--r--drivers/char/tpm/eventlog/acpi.c15
-rw-r--r--drivers/char/tpm/tpm-buf.c6
-rw-r--r--drivers/char/tpm/tpm-chip.c6
-rw-r--r--drivers/char/tpm/tpm-interface.c7
-rw-r--r--drivers/char/tpm/tpm2-sessions.c22
-rw-r--r--drivers/char/tpm/tpm_tis_core.c20
-rw-r--r--drivers/char/tpm/tpm_tis_core.h3
-rw-r--r--drivers/char/virtio_console.c7
14 files changed, 140 insertions, 73 deletions
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index 1e3048f2bb38..6c4e40d0365f 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -142,7 +142,9 @@ static int mtk_rng_probe(struct platform_device *pdev)
dev_set_drvdata(&pdev->dev, priv);
pm_runtime_set_autosuspend_delay(&pdev->dev, RNG_AUTOSUSPEND_TIMEOUT);
pm_runtime_use_autosuspend(&pdev->dev);
- devm_pm_runtime_enable(&pdev->dev);
+ ret = devm_pm_runtime_enable(&pdev->dev);
+ if (ret)
+ return ret;
dev_info(&pdev->dev, "registered RNG driver\n");
diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index 7296127181ec..8a14fd0291d8 100644
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -321,6 +321,9 @@ static int ipmb_probe(struct i2c_client *client)
ipmb_dev->miscdev.name = devm_kasprintf(&client->dev, GFP_KERNEL,
"%s%d", "ipmb-",
client->adapter->nr);
+ if (!ipmb_dev->miscdev.name)
+ return -ENOMEM;
+
ipmb_dev->miscdev.fops = &ipmb_fops;
ipmb_dev->miscdev.parent = &client->dev;
ret = misc_register(&ipmb_dev->miscdev);
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index e12b531f5c2f..09405668ebb3 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -1241,7 +1241,7 @@ int ipmi_create_user(unsigned int if_num,
}
/* Not found, return an error */
rv = -EINVAL;
- goto out_kfree;
+ goto out_unlock;
found:
if (atomic_add_return(1, &intf->nr_users) > max_users) {
@@ -1283,6 +1283,7 @@ int ipmi_create_user(unsigned int if_num,
out_kfree:
atomic_dec(&intf->nr_users);
+out_unlock:
srcu_read_unlock(&ipmi_interfaces_srcu, index);
vfree(new_user);
return rv;
@@ -4616,10 +4617,10 @@ return_unspecified:
* The NetFN and Command in the response is not even
* marginally correct.
*/
- dev_warn(intf->si_dev,
- "BMC returned incorrect response, expected netfn %x cmd %x, got netfn %x cmd %x\n",
- (msg->data[0] >> 2) | 1, msg->data[1],
- msg->rsp[0] >> 2, msg->rsp[1]);
+ dev_warn_ratelimited(intf->si_dev,
+ "BMC returned incorrect response, expected netfn %x cmd %x, got netfn %x cmd %x\n",
+ (msg->data[0] >> 2) | 1, msg->data[1],
+ msg->rsp[0] >> 2, msg->rsp[1]);
goto return_unspecified;
}
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 335eea80054e..37ab5806b1a4 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -1189,14 +1189,8 @@ static struct ipmi_smi_watcher smi_watcher = {
.smi_gone = ipmi_smi_gone
};
-static int action_op(const char *inval, char *outval)
+static int action_op_set_val(const char *inval)
{
- if (outval)
- strcpy(outval, action);
-
- if (!inval)
- return 0;
-
if (strcmp(inval, "reset") == 0)
action_val = WDOG_TIMEOUT_RESET;
else if (strcmp(inval, "none") == 0)
@@ -1207,18 +1201,26 @@ static int action_op(const char *inval, char *outval)
action_val = WDOG_TIMEOUT_POWER_DOWN;
else
return -EINVAL;
- strcpy(action, inval);
return 0;
}
-static int preaction_op(const char *inval, char *outval)
+static int action_op(const char *inval, char *outval)
{
+ int rv;
+
if (outval)
- strcpy(outval, preaction);
+ strcpy(outval, action);
if (!inval)
return 0;
+ rv = action_op_set_val(inval);
+ if (!rv)
+ strcpy(action, inval);
+ return rv;
+}
+static int preaction_op_set_val(const char *inval)
+{
if (strcmp(inval, "pre_none") == 0)
preaction_val = WDOG_PRETIMEOUT_NONE;
else if (strcmp(inval, "pre_smi") == 0)
@@ -1231,18 +1233,26 @@ static int preaction_op(const char *inval, char *outval)
preaction_val = WDOG_PRETIMEOUT_MSG_INT;
else
return -EINVAL;
- strcpy(preaction, inval);
return 0;
}
-static int preop_op(const char *inval, char *outval)
+static int preaction_op(const char *inval, char *outval)
{
+ int rv;
+
if (outval)
- strcpy(outval, preop);
+ strcpy(outval, preaction);
if (!inval)
return 0;
+ rv = preaction_op_set_val(inval);
+ if (!rv)
+ strcpy(preaction, inval);
+ return 0;
+}
+static int preop_op_set_val(const char *inval)
+{
if (strcmp(inval, "preop_none") == 0)
preop_val = WDOG_PREOP_NONE;
else if (strcmp(inval, "preop_panic") == 0)
@@ -1251,7 +1261,22 @@ static int preop_op(const char *inval, char *outval)
preop_val = WDOG_PREOP_GIVE_DATA;
else
return -EINVAL;
- strcpy(preop, inval);
+ return 0;
+}
+
+static int preop_op(const char *inval, char *outval)
+{
+ int rv;
+
+ if (outval)
+ strcpy(outval, preop);
+
+ if (!inval)
+ return 0;
+
+ rv = preop_op_set_val(inval);
+ if (!rv)
+ strcpy(preop, inval);
return 0;
}
@@ -1288,18 +1313,18 @@ static int __init ipmi_wdog_init(void)
{
int rv;
- if (action_op(action, NULL)) {
+ if (action_op_set_val(action)) {
action_op("reset", NULL);
pr_info("Unknown action '%s', defaulting to reset\n", action);
}
- if (preaction_op(preaction, NULL)) {
+ if (preaction_op_set_val(preaction)) {
preaction_op("pre_none", NULL);
pr_info("Unknown preaction '%s', defaulting to none\n",
preaction);
}
- if (preop_op(preop, NULL)) {
+ if (preop_op_set_val(preop)) {
preop_op("preop_none", NULL);
pr_info("Unknown preop '%s', defaulting to none\n", preop);
}
diff --git a/drivers/char/ipmi/ssif_bmc.c b/drivers/char/ipmi/ssif_bmc.c
index a14fafc583d4..310f17dd9511 100644
--- a/drivers/char/ipmi/ssif_bmc.c
+++ b/drivers/char/ipmi/ssif_bmc.c
@@ -292,7 +292,6 @@ static void complete_response(struct ssif_bmc_ctx *ssif_bmc)
ssif_bmc->nbytes_processed = 0;
ssif_bmc->remain_len = 0;
ssif_bmc->busy = false;
- memset(&ssif_bmc->part_buf, 0, sizeof(struct ssif_part_buffer));
wake_up_all(&ssif_bmc->wait_queue);
}
@@ -744,9 +743,11 @@ static void on_stop_event(struct ssif_bmc_ctx *ssif_bmc, u8 *val)
ssif_bmc->aborting = true;
}
} else if (ssif_bmc->state == SSIF_RES_SENDING) {
- if (ssif_bmc->is_singlepart_read || ssif_bmc->block_num == 0xFF)
+ if (ssif_bmc->is_singlepart_read || ssif_bmc->block_num == 0xFF) {
+ memset(&ssif_bmc->part_buf, 0, sizeof(struct ssif_part_buffer));
/* Invalidate response buffer to denote it is sent */
complete_response(ssif_bmc);
+ }
ssif_bmc->state = SSIF_READY;
}
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 541edc26ec89..30178e20d962 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -63,16 +63,30 @@ static DEFINE_MUTEX(misc_mtx);
#define DYNAMIC_MINORS 128 /* like dynamic majors */
static DEFINE_IDA(misc_minors_ida);
-static int misc_minor_alloc(void)
+static int misc_minor_alloc(int minor)
{
- int ret;
-
- ret = ida_alloc_max(&misc_minors_ida, DYNAMIC_MINORS - 1, GFP_KERNEL);
- if (ret >= 0) {
- ret = DYNAMIC_MINORS - ret - 1;
+ int ret = 0;
+
+ if (minor == MISC_DYNAMIC_MINOR) {
+ /* allocate free id */
+ ret = ida_alloc_max(&misc_minors_ida, DYNAMIC_MINORS - 1, GFP_KERNEL);
+ if (ret >= 0) {
+ ret = DYNAMIC_MINORS - ret - 1;
+ } else {
+ ret = ida_alloc_range(&misc_minors_ida, MISC_DYNAMIC_MINOR + 1,
+ MINORMASK, GFP_KERNEL);
+ }
} else {
- ret = ida_alloc_range(&misc_minors_ida, MISC_DYNAMIC_MINOR + 1,
- MINORMASK, GFP_KERNEL);
+ /* specific minor, check if it is in dynamic or misc dynamic range */
+ if (minor < DYNAMIC_MINORS) {
+ minor = DYNAMIC_MINORS - minor - 1;
+ ret = ida_alloc_range(&misc_minors_ida, minor, minor, GFP_KERNEL);
+ } else if (minor > MISC_DYNAMIC_MINOR) {
+ ret = ida_alloc_range(&misc_minors_ida, minor, minor, GFP_KERNEL);
+ } else {
+ /* case of non-dynamic minors, no need to allocate id */
+ ret = 0;
+ }
}
return ret;
}
@@ -219,7 +233,7 @@ int misc_register(struct miscdevice *misc)
mutex_lock(&misc_mtx);
if (is_dynamic) {
- int i = misc_minor_alloc();
+ int i = misc_minor_alloc(misc->minor);
if (i < 0) {
err = -EBUSY;
@@ -228,6 +242,7 @@ int misc_register(struct miscdevice *misc)
misc->minor = i;
} else {
struct miscdevice *c;
+ int i;
list_for_each_entry(c, &misc_list, list) {
if (c->minor == misc->minor) {
@@ -235,6 +250,12 @@ int misc_register(struct miscdevice *misc)
goto out;
}
}
+
+ i = misc_minor_alloc(misc->minor);
+ if (i < 0) {
+ err = -EBUSY;
+ goto out;
+ }
}
dev = MKDEV(MISC_MAJOR, misc->minor);
@@ -243,8 +264,8 @@ int misc_register(struct miscdevice *misc)
device_create_with_groups(&misc_class, misc->parent, dev,
misc, misc->groups, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
+ misc_minor_free(misc->minor);
if (is_dynamic) {
- misc_minor_free(misc->minor);
misc->minor = MISC_DYNAMIC_MINOR;
}
err = PTR_ERR(misc->this_device);
@@ -293,8 +314,8 @@ static int __init misc_init(void)
if (err)
goto fail_remove;
- err = -EIO;
- if (register_chrdev(MISC_MAJOR, "misc", &misc_fops))
+ err = __register_chrdev(MISC_MAJOR, 0, MINORMASK + 1, "misc", &misc_fops);
+ if (err < 0)
goto fail_printk;
return 0;
diff --git a/drivers/char/tpm/eventlog/acpi.c b/drivers/char/tpm/eventlog/acpi.c
index 69533d0bfb51..cf02ec646f46 100644
--- a/drivers/char/tpm/eventlog/acpi.c
+++ b/drivers/char/tpm/eventlog/acpi.c
@@ -63,6 +63,11 @@ static bool tpm_is_tpm2_log(void *bios_event_log, u64 len)
return n == 0;
}
+static void tpm_bios_log_free(void *data)
+{
+ kvfree(data);
+}
+
/* read binary bios log */
int tpm_read_log_acpi(struct tpm_chip *chip)
{
@@ -136,7 +141,7 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
}
/* malloc EventLog space */
- log->bios_event_log = devm_kmalloc(&chip->dev, len, GFP_KERNEL);
+ log->bios_event_log = kvmalloc(len, GFP_KERNEL);
if (!log->bios_event_log)
return -ENOMEM;
@@ -161,10 +166,16 @@ int tpm_read_log_acpi(struct tpm_chip *chip)
goto err;
}
+ ret = devm_add_action(&chip->dev, tpm_bios_log_free, log->bios_event_log);
+ if (ret) {
+ log->bios_event_log = NULL;
+ goto err;
+ }
+
return format;
err:
- devm_kfree(&chip->dev, log->bios_event_log);
+ tpm_bios_log_free(log->bios_event_log);
log->bios_event_log = NULL;
return ret;
}
diff --git a/drivers/char/tpm/tpm-buf.c b/drivers/char/tpm/tpm-buf.c
index e49a19fea3bd..dc882fc9fa9e 100644
--- a/drivers/char/tpm/tpm-buf.c
+++ b/drivers/char/tpm/tpm-buf.c
@@ -201,7 +201,7 @@ static void tpm_buf_read(struct tpm_buf *buf, off_t *offset, size_t count, void
*/
u8 tpm_buf_read_u8(struct tpm_buf *buf, off_t *offset)
{
- u8 value;
+ u8 value = 0;
tpm_buf_read(buf, offset, sizeof(value), &value);
@@ -218,7 +218,7 @@ EXPORT_SYMBOL_GPL(tpm_buf_read_u8);
*/
u16 tpm_buf_read_u16(struct tpm_buf *buf, off_t *offset)
{
- u16 value;
+ u16 value = 0;
tpm_buf_read(buf, offset, sizeof(value), &value);
@@ -235,7 +235,7 @@ EXPORT_SYMBOL_GPL(tpm_buf_read_u16);
*/
u32 tpm_buf_read_u32(struct tpm_buf *buf, off_t *offset)
{
- u32 value;
+ u32 value = 0;
tpm_buf_read(buf, offset, sizeof(value), &value);
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 7df7abaf3e52..e25daf2396d3 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -168,6 +168,11 @@ int tpm_try_get_ops(struct tpm_chip *chip)
goto out_ops;
mutex_lock(&chip->tpm_mutex);
+
+ /* tmp_chip_start may issue IO that is denied while suspended */
+ if (chip->flags & TPM_CHIP_FLAG_SUSPENDED)
+ goto out_lock;
+
rc = tpm_chip_start(chip);
if (rc)
goto out_lock;
@@ -300,6 +305,7 @@ int tpm_class_shutdown(struct device *dev)
down_write(&chip->ops_sem);
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
if (!tpm_chip_start(chip)) {
+ tpm2_end_auth_session(chip);
tpm2_shutdown(chip, TPM2_SU_CLEAR);
tpm_chip_stop(chip);
}
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index b1daa0d7b341..f62f7871edbd 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -445,18 +445,11 @@ int tpm_get_random(struct tpm_chip *chip, u8 *out, size_t max)
if (!chip)
return -ENODEV;
- /* Give back zero bytes, as TPM chip has not yet fully resumed: */
- if (chip->flags & TPM_CHIP_FLAG_SUSPENDED) {
- rc = 0;
- goto out;
- }
-
if (chip->flags & TPM_CHIP_FLAG_TPM2)
rc = tpm2_get_random(chip, out, max);
else
rc = tpm1_get_random(chip, out, max);
-out:
tpm_put_ops(chip);
return rc;
}
diff --git a/drivers/char/tpm/tpm2-sessions.c b/drivers/char/tpm/tpm2-sessions.c
index b0f13c8ea79c..cf0b83154044 100644
--- a/drivers/char/tpm/tpm2-sessions.c
+++ b/drivers/char/tpm/tpm2-sessions.c
@@ -40,11 +40,6 @@
*
* These are the usage functions:
*
- * tpm2_start_auth_session() which allocates the opaque auth structure
- * and gets a session from the TPM. This must be called before
- * any of the following functions. The session is protected by a
- * session_key which is derived from a random salt value
- * encrypted to the NULL seed.
* tpm2_end_auth_session() kills the session and frees the resources.
* Under normal operation this function is done by
* tpm_buf_check_hmac_response(), so this is only to be used on
@@ -963,16 +958,13 @@ err:
}
/**
- * tpm2_start_auth_session() - create a HMAC authentication session with the TPM
- * @chip: the TPM chip structure to create the session with
+ * tpm2_start_auth_session() - Create an a HMAC authentication session
+ * @chip: A TPM chip
*
- * This function loads the NULL seed from its saved context and starts
- * an authentication session on the null seed, fills in the
- * @chip->auth structure to contain all the session details necessary
- * for performing the HMAC, encrypt and decrypt operations and
- * returns. The NULL seed is flushed before this function returns.
+ * Loads the ephemeral key (null seed), and starts an HMAC authenticated
+ * session. The null seed is flushed before the return.
*
- * Return: zero on success or actual error encountered.
+ * Returns zero on success, or a POSIX error code.
*/
int tpm2_start_auth_session(struct tpm_chip *chip)
{
@@ -982,7 +974,7 @@ int tpm2_start_auth_session(struct tpm_chip *chip)
int rc;
if (chip->auth) {
- dev_warn_once(&chip->dev, "auth session is active\n");
+ dev_dbg_once(&chip->dev, "auth session is active\n");
return 0;
}
@@ -1024,7 +1016,7 @@ int tpm2_start_auth_session(struct tpm_chip *chip)
/* hash algorithm for session */
tpm_buf_append_u16(&buf, TPM_ALG_SHA256);
- rc = tpm_transmit_cmd(chip, &buf, 0, "start auth session");
+ rc = tpm_ret_to_err(tpm_transmit_cmd(chip, &buf, 0, "StartAuthSession"));
tpm2_flush_context(chip, null_key);
if (rc == TPM2_RC_SUCCESS)
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index fdef214b9f6b..ed0d3d8449b3 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -114,11 +114,10 @@ again:
return 0;
/* process status changes without irq support */
do {
+ usleep_range(priv->timeout_min, priv->timeout_max);
status = chip->ops->status(chip);
if ((status & mask) == mask)
return 0;
- usleep_range(priv->timeout_min,
- priv->timeout_max);
} while (time_before(jiffies, stop));
return -ETIME;
}
@@ -464,7 +463,10 @@ static int tpm_tis_send_data(struct tpm_chip *chip, const u8 *buf, size_t len)
if (wait_for_tpm_stat(chip, TPM_STS_VALID, chip->timeout_c,
&priv->int_queue, false) < 0) {
- rc = -ETIME;
+ if (test_bit(TPM_TIS_STATUS_VALID_RETRY, &priv->flags))
+ rc = -EAGAIN;
+ else
+ rc = -ETIME;
goto out_err;
}
status = tpm_tis_status(chip);
@@ -481,7 +483,10 @@ static int tpm_tis_send_data(struct tpm_chip *chip, const u8 *buf, size_t len)
if (wait_for_tpm_stat(chip, TPM_STS_VALID, chip->timeout_c,
&priv->int_queue, false) < 0) {
- rc = -ETIME;
+ if (test_bit(TPM_TIS_STATUS_VALID_RETRY, &priv->flags))
+ rc = -EAGAIN;
+ else
+ rc = -ETIME;
goto out_err;
}
status = tpm_tis_status(chip);
@@ -546,9 +551,11 @@ static int tpm_tis_send_main(struct tpm_chip *chip, const u8 *buf, size_t len)
if (rc >= 0)
/* Data transfer done successfully */
break;
- else if (rc != -EIO)
+ else if (rc != -EAGAIN && rc != -EIO)
/* Data transfer failed, not recoverable */
return rc;
+
+ usleep_range(priv->timeout_min, priv->timeout_max);
}
/* go and do it */
@@ -1144,6 +1151,9 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
priv->timeout_max = TIS_TIMEOUT_MAX_ATML;
}
+ if (priv->manufacturer_id == TPM_VID_IFX)
+ set_bit(TPM_TIS_STATUS_VALID_RETRY, &priv->flags);
+
if (is_bsw()) {
priv->ilb_base_addr = ioremap(INTEL_LEGACY_BLK_BASE_ADDR,
ILB_REMAP_SIZE);
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index 690ad8e9b731..6c3aa480396b 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -54,7 +54,7 @@ enum tis_int_flags {
enum tis_defaults {
TIS_MEM_LEN = 0x5000,
TIS_SHORT_TIMEOUT = 750, /* ms */
- TIS_LONG_TIMEOUT = 2000, /* 2 sec */
+ TIS_LONG_TIMEOUT = 4000, /* 4 secs */
TIS_TIMEOUT_MIN_ATML = 14700, /* usecs */
TIS_TIMEOUT_MAX_ATML = 15000, /* usecs */
};
@@ -89,6 +89,7 @@ enum tpm_tis_flags {
TPM_TIS_INVALID_STATUS = 1,
TPM_TIS_DEFAULT_CANCELLATION = 2,
TPM_TIS_IRQ_TESTED = 3,
+ TPM_TIS_STATUS_VALID_RETRY = 4,
};
struct tpm_tis_data {
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index c62b208b42f1..abcfdd3c2918 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1579,8 +1579,8 @@ static void handle_control_message(struct virtio_device *vdev,
break;
case VIRTIO_CONSOLE_RESIZE: {
struct {
- __u16 rows;
- __u16 cols;
+ __virtio16 rows;
+ __virtio16 cols;
} size;
if (!is_console_port(port))
@@ -1588,7 +1588,8 @@ static void handle_control_message(struct virtio_device *vdev,
memcpy(&size, buf->buf + buf->offset + sizeof(*cpkt),
sizeof(size));
- set_console_size(port, size.rows, size.cols);
+ set_console_size(port, virtio16_to_cpu(vdev, size.rows),
+ virtio16_to_cpu(vdev, size.cols));
port->cons.hvc->irq_requested = 1;
resize_console(port);