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-rw-r--r--drivers/char/Kconfig9
-rw-r--r--drivers/char/applicom.c2
-rw-r--r--drivers/char/ds1286.c4
-rw-r--r--drivers/char/hw_random/omap-rng.c33
-rw-r--r--drivers/char/keyboard.c2
-rw-r--r--drivers/char/moxa.c2
-rw-r--r--drivers/char/random.c2
-rw-r--r--drivers/char/rtc.c2
-rw-r--r--drivers/char/sysrq.c31
-rw-r--r--drivers/char/tpm/tpm.c36
-rw-r--r--drivers/char/vt.c2
11 files changed, 85 insertions, 40 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 700ff967945..122254155ae 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -1043,15 +1043,6 @@ config HPET
open selects one of the timers supported by the HPET. The timers are
non-periodic and/or periodic.
-config HPET_RTC_IRQ
- bool
- default HPET_EMULATE_RTC
- depends on RTC && HPET
- help
- If you say Y here, you will disable RTC_IRQ in drivers/char/rtc.c. It
- is assumed the platform called hpet_alloc with the RTC IRQ values for
- the HPET timers.
-
config HPET_MMAP
bool "Allow mmap of HPET"
default y
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index b899d9182c7..05674febb0c 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -478,7 +478,7 @@ static int do_ac_read(int IndexCard, char __user *buf,
struct st_ram_io *st_loc, struct mailbox *mailbox)
{
void __iomem *from = apbs[IndexCard].RamIO + RAM_TO_PC;
- unsigned char *to = (unsigned char *)&mailbox;
+ unsigned char *to = (unsigned char *)mailbox;
#ifdef DEBUG
int c;
#endif
diff --git a/drivers/char/ds1286.c b/drivers/char/ds1286.c
index fb584938c9c..5329d482b58 100644
--- a/drivers/char/ds1286.c
+++ b/drivers/char/ds1286.c
@@ -443,7 +443,6 @@ static void ds1286_get_time(struct rtc_time *rtc_tm)
{
unsigned char save_control;
unsigned long flags;
- unsigned long uip_watchdog = jiffies;
/*
* read RTC once any update in progress is done. The update
@@ -456,8 +455,7 @@ static void ds1286_get_time(struct rtc_time *rtc_tm)
*/
if (ds1286_is_updating() != 0)
- while (time_before(jiffies, uip_watchdog + 2*HZ/100))
- barrier();
+ msleep(20);
/*
* Only the values that we read from the RTC are set. We leave
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 51738bdd834..d4e7dca06e4 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -118,18 +118,21 @@ static int __init omap_rng_probe(struct platform_device *pdev)
mem = request_mem_region(res->start, res->end - res->start + 1,
pdev->name);
- if (mem == NULL)
- return -EBUSY;
+ if (mem == NULL) {
+ ret = -EBUSY;
+ goto err_region;
+ }
dev_set_drvdata(&pdev->dev, mem);
- rng_base = (u32 __force __iomem *)io_p2v(res->start);
+ rng_base = ioremap(res->start, res->end - res->start + 1);
+ if (!rng_base) {
+ ret = -ENOMEM;
+ goto err_ioremap;
+ }
ret = hwrng_register(&omap_rng_ops);
- if (ret) {
- release_resource(mem);
- rng_base = NULL;
- return ret;
- }
+ if (ret)
+ goto err_register;
dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
omap_rng_read_reg(RNG_REV_REG));
@@ -138,6 +141,18 @@ static int __init omap_rng_probe(struct platform_device *pdev)
rng_dev = pdev;
return 0;
+
+err_register:
+ iounmap(rng_base);
+ rng_base = NULL;
+err_ioremap:
+ release_resource(mem);
+err_region:
+ if (cpu_is_omap24xx()) {
+ clk_disable(rng_ick);
+ clk_put(rng_ick);
+ }
+ return ret;
}
static int __exit omap_rng_remove(struct platform_device *pdev)
@@ -148,6 +163,8 @@ static int __exit omap_rng_remove(struct platform_device *pdev)
omap_rng_write_reg(RNG_MASK_REG, 0x0);
+ iounmap(rng_base);
+
if (cpu_is_omap24xx()) {
clk_disable(rng_ick);
clk_put(rng_ick);
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 7b3a212c86b..de26a978fbd 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1249,7 +1249,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
return;
}
- if (keycode > NR_KEYS)
+ if (keycode >= NR_KEYS)
if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8)
keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1);
else
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 5df4003ad87..12d327a2c9b 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -513,7 +513,7 @@ static int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr,
size_t len)
{
void __iomem *baseAddr = brd->basemem;
- const u16 *uptr = ptr;
+ const __le16 *uptr = ptr;
size_t wlen, len2, j;
unsigned long key, loadbuf, loadlen, checksum, checksum_ok;
unsigned int i, retry;
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 6af435b8986..c8752eaad48 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1205,7 +1205,7 @@ static int proc_do_uuid(ctl_table *table, int write, struct file *filp,
return proc_dostring(&fake_table, write, filp, buffer, lenp, ppos);
}
-static int uuid_strategy(ctl_table *table, int __user *name, int nlen,
+static int uuid_strategy(ctl_table *table,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index b47710c1788..17683de9571 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -96,7 +96,7 @@ static unsigned long rtc_port;
static int rtc_irq;
#endif
-#ifdef CONFIG_HPET_RTC_IRQ
+#ifdef CONFIG_HPET_EMULATE_RTC
#undef RTC_IRQ
#endif
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 8fdfe9c871e..dce4cc0e695 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -23,6 +23,7 @@
#include <linux/reboot.h>
#include <linux/sysrq.h>
#include <linux/kbd_kern.h>
+#include <linux/proc_fs.h>
#include <linux/quotaops.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -326,6 +327,7 @@ static struct sysrq_key_op sysrq_moom_op = {
.handler = sysrq_handle_moom,
.help_msg = "Full",
.action_msg = "Manual OOM execution",
+ .enable_mask = SYSRQ_ENABLE_SIGNAL,
};
static void sysrq_handle_kill(int key, struct tty_struct *tty)
@@ -533,3 +535,32 @@ int unregister_sysrq_key(int key, struct sysrq_key_op *op_p)
return __sysrq_swap_key_ops(key, NULL, op_p);
}
EXPORT_SYMBOL(unregister_sysrq_key);
+
+#ifdef CONFIG_PROC_FS
+/*
+ * writing 'C' to /proc/sysrq-trigger is like sysrq-C
+ */
+static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ if (count) {
+ char c;
+
+ if (get_user(c, buf))
+ return -EFAULT;
+ __handle_sysrq(c, NULL, 0);
+ }
+ return count;
+}
+
+static const struct file_operations proc_sysrq_trigger_operations = {
+ .write = write_sysrq_trigger,
+};
+
+static int __init sysrq_init(void)
+{
+ proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations);
+ return 0;
+}
+module_init(sysrq_init);
+#endif
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 1fee7034a38..e70d13defde 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -525,19 +525,19 @@ void tpm_get_timeouts(struct tpm_chip *chip)
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
if (timeout)
- chip->vendor.timeout_a = msecs_to_jiffies(timeout);
+ chip->vendor.timeout_a = usecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
if (timeout)
- chip->vendor.timeout_b = msecs_to_jiffies(timeout);
+ chip->vendor.timeout_b = usecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
if (timeout)
- chip->vendor.timeout_c = msecs_to_jiffies(timeout);
+ chip->vendor.timeout_c = usecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX)));
if (timeout)
- chip->vendor.timeout_d = msecs_to_jiffies(timeout);
+ chip->vendor.timeout_d = usecs_to_jiffies(timeout);
duration:
memcpy(data, tpm_cap, sizeof(tpm_cap));
@@ -554,15 +554,22 @@ duration:
return;
chip->vendor.duration[TPM_SHORT] =
- msecs_to_jiffies(be32_to_cpu
+ usecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_1_IDX))));
+ /* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
+ * value wrong and apparently reports msecs rather than usecs. So we
+ * fix up the resulting too-small TPM_SHORT value to make things work.
+ */
+ if (chip->vendor.duration[TPM_SHORT] < (HZ/100))
+ chip->vendor.duration[TPM_SHORT] = HZ;
+
chip->vendor.duration[TPM_MEDIUM] =
- msecs_to_jiffies(be32_to_cpu
+ usecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_2_IDX))));
chip->vendor.duration[TPM_LONG] =
- msecs_to_jiffies(be32_to_cpu
+ usecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_3_IDX))));
}
@@ -1180,11 +1187,8 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL);
- if (chip == NULL || devname == NULL) {
- kfree(chip);
- kfree(devname);
- return NULL;
- }
+ if (chip == NULL || devname == NULL)
+ goto out_free;
mutex_init(&chip->buffer_mutex);
mutex_init(&chip->tpm_mutex);
@@ -1201,8 +1205,7 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
if (chip->dev_num >= TPM_NUM_DEVICES) {
dev_err(dev, "No available tpm device numbers\n");
- kfree(chip);
- return NULL;
+ goto out_free;
} else if (chip->dev_num == 0)
chip->vendor.miscdev.minor = TPM_MINOR;
else
@@ -1243,6 +1246,11 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
spin_unlock(&driver_lock);
return chip;
+
+out_free:
+ kfree(chip);
+ kfree(devname);
+ return NULL;
}
EXPORT_SYMBOL_GPL(tpm_register_hardware);
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index a0f7ffb6808..d8f83e26e4a 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -59,7 +59,7 @@
* by Martin Mares <mj@atrey.karlin.mff.cuni.cz>, July 1998
*
* Removed old-style timers, introduced console_timer, made timer
- * deletion SMP-safe. 17Jun00, Andrew Morton <andrewm@uow.edu.au>
+ * deletion SMP-safe. 17Jun00, Andrew Morton
*
* Removed console_lock, enabled interrupts across all console operations
* 13 March 2001, Andrew Morton
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-12 13:54:36 +0000