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Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/eeprom/at24.c43
-rw-r--r--drivers/misc/ioc4.c29
-rw-r--r--drivers/misc/vmw_balloon.c13
3 files changed, 54 insertions, 31 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 559b0b3c16c3..ab1ad41786d1 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -20,6 +20,7 @@
#include <linux/log2.h>
#include <linux/bitops.h>
#include <linux/jiffies.h>
+#include <linux/of.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
@@ -457,6 +458,27 @@ static ssize_t at24_macc_write(struct memory_accessor *macc, const char *buf,
/*-------------------------------------------------------------------------*/
+#ifdef CONFIG_OF
+static void at24_get_ofdata(struct i2c_client *client,
+ struct at24_platform_data *chip)
+{
+ const __be32 *val;
+ struct device_node *node = client->dev.of_node;
+
+ if (node) {
+ if (of_get_property(node, "read-only", NULL))
+ chip->flags |= AT24_FLAG_READONLY;
+ val = of_get_property(node, "pagesize", NULL);
+ if (val)
+ chip->page_size = be32_to_cpup(val);
+ }
+}
+#else
+static void at24_get_ofdata(struct i2c_client *client,
+ struct at24_platform_data *chip)
+{ }
+#endif /* CONFIG_OF */
+
static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct at24_platform_data chip;
@@ -485,6 +507,9 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
*/
chip.page_size = 1;
+ /* update chipdata if OF is present */
+ at24_get_ofdata(client, &chip);
+
chip.setup = NULL;
chip.context = NULL;
}
@@ -492,6 +517,11 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
if (!is_power_of_2(chip.byte_len))
dev_warn(&client->dev,
"byte_len looks suspicious (no power of 2)!\n");
+ if (!chip.page_size) {
+ dev_err(&client->dev, "page_size must not be 0!\n");
+ err = -EINVAL;
+ goto err_out;
+ }
if (!is_power_of_2(chip.page_size))
dev_warn(&client->dev,
"page_size looks suspicious (no power of 2)!\n");
@@ -597,19 +627,15 @@ static int at24_probe(struct i2c_client *client, const struct i2c_device_id *id)
i2c_set_clientdata(client, at24);
- dev_info(&client->dev, "%zu byte %s EEPROM %s\n",
+ dev_info(&client->dev, "%zu byte %s EEPROM, %s, %u bytes/write\n",
at24->bin.size, client->name,
- writable ? "(writable)" : "(read-only)");
+ writable ? "writable" : "read-only", at24->write_max);
if (use_smbus == I2C_SMBUS_WORD_DATA ||
use_smbus == I2C_SMBUS_BYTE_DATA) {
dev_notice(&client->dev, "Falling back to %s reads, "
"performance will suffer\n", use_smbus ==
I2C_SMBUS_WORD_DATA ? "word" : "byte");
}
- dev_dbg(&client->dev,
- "page_size %d, num_addresses %d, write_max %d, use_smbus %d\n",
- chip.page_size, num_addresses,
- at24->write_max, use_smbus);
/* export data to kernel code */
if (chip.setup)
@@ -660,6 +686,11 @@ static struct i2c_driver at24_driver = {
static int __init at24_init(void)
{
+ if (!io_limit) {
+ pr_err("at24: io_limit must not be 0!\n");
+ return -EINVAL;
+ }
+
io_limit = rounddown_pow_of_two(io_limit);
return i2c_add_driver(&at24_driver);
}
diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
index 193206602d88..668d41e594a9 100644
--- a/drivers/misc/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -273,13 +273,11 @@ ioc4_variant(struct ioc4_driver_data *idd)
static void __devinit
ioc4_load_modules(struct work_struct *work)
{
- /* arg just has to be freed */
-
request_module("sgiioc4");
-
- kfree(work);
}
+static DECLARE_WORK(ioc4_load_modules_work, ioc4_load_modules);
+
/* Adds a new instance of an IOC4 card */
static int __devinit
ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
@@ -396,21 +394,12 @@ ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
* PCI device.
*/
if (idd->idd_variant != IOC4_VARIANT_PCI_RT) {
- struct work_struct *work;
- work = kzalloc(sizeof(struct work_struct), GFP_KERNEL);
- if (!work) {
- printk(KERN_WARNING
- "%s: IOC4 unable to allocate memory for "
- "load of sub-modules.\n", __func__);
- } else {
- /* Request the module from a work procedure as the
- * modprobe goes out to a userland helper and that
- * will hang if done directly from ioc4_probe().
- */
- printk(KERN_INFO "IOC4 loading sgiioc4 submodule\n");
- INIT_WORK(work, ioc4_load_modules);
- schedule_work(work);
- }
+ /* Request the module from a work procedure as the modprobe
+ * goes out to a userland helper and that will hang if done
+ * directly from ioc4_probe().
+ */
+ printk(KERN_INFO "IOC4 loading sgiioc4 submodule\n");
+ schedule_work(&ioc4_load_modules_work);
}
return 0;
@@ -498,7 +487,7 @@ static void __exit
ioc4_exit(void)
{
/* Ensure ioc4_load_modules() has completed before exiting */
- flush_scheduled_work();
+ flush_work_sync(&ioc4_load_modules_work);
pci_unregister_driver(&ioc4_driver);
}
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 2a1e804a71aa..4d2ea8e80140 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -45,7 +45,7 @@
MODULE_AUTHOR("VMware, Inc.");
MODULE_DESCRIPTION("VMware Memory Control (Balloon) Driver");
-MODULE_VERSION("1.2.1.1-k");
+MODULE_VERSION("1.2.1.2-k");
MODULE_ALIAS("dmi:*:svnVMware*:*");
MODULE_ALIAS("vmware_vmmemctl");
MODULE_LICENSE("GPL");
@@ -315,7 +315,8 @@ static bool vmballoon_send_get_target(struct vmballoon *b, u32 *new_target)
* fear that guest will need it. Host may reject some pages, we need to
* check the return value and maybe submit a different page.
*/
-static bool vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn)
+static bool vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn,
+ unsigned int *hv_status)
{
unsigned long status, dummy;
u32 pfn32;
@@ -326,7 +327,7 @@ static bool vmballoon_send_lock_page(struct vmballoon *b, unsigned long pfn)
STATS_INC(b->stats.lock);
- status = VMWARE_BALLOON_CMD(LOCK, pfn, dummy);
+ *hv_status = status = VMWARE_BALLOON_CMD(LOCK, pfn, dummy);
if (vmballoon_check_status(b, status))
return true;
@@ -410,6 +411,7 @@ static int vmballoon_reserve_page(struct vmballoon *b, bool can_sleep)
{
struct page *page;
gfp_t flags;
+ unsigned int hv_status;
bool locked = false;
do {
@@ -429,11 +431,12 @@ static int vmballoon_reserve_page(struct vmballoon *b, bool can_sleep)
}
/* inform monitor */
- locked = vmballoon_send_lock_page(b, page_to_pfn(page));
+ locked = vmballoon_send_lock_page(b, page_to_pfn(page), &hv_status);
if (!locked) {
STATS_INC(b->stats.refused_alloc);
- if (b->reset_required) {
+ if (hv_status == VMW_BALLOON_ERROR_RESET ||
+ hv_status == VMW_BALLOON_ERROR_PPN_NOTNEEDED) {
__free_page(page);
return -EIO;
}
generated by cgit v1.2.3 (git 2.0.4) at 2025-01-05 00:10:32 +0000