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-rw-r--r--drivers/char/hpet.c40
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c30
2 files changed, 47 insertions, 23 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index a4eee32..55b8667 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -32,12 +32,12 @@
#include <linux/bitops.h>
#include <linux/compat.h>
#include <linux/clocksource.h>
+#include <linux/uaccess.h>
#include <linux/slab.h>
+#include <linux/io.h>
#include <asm/current.h>
-#include <asm/uaccess.h>
#include <asm/system.h>
-#include <asm/io.h>
#include <asm/irq.h>
#include <asm/div64.h>
@@ -81,13 +81,13 @@ static cycle_t read_hpet(struct clocksource *cs)
}
static struct clocksource clocksource_hpet = {
- .name = "hpet",
- .rating = 250,
- .read = read_hpet,
- .mask = CLOCKSOURCE_MASK(64),
- .mult = 0, /* to be calculated */
- .shift = 10,
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+ .name = "hpet",
+ .rating = 250,
+ .read = read_hpet,
+ .mask = CLOCKSOURCE_MASK(64),
+ .mult = 0, /* to be calculated */
+ .shift = 10,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct clocksource *hpet_clocksource;
#endif
@@ -465,6 +465,21 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp)
if (irq) {
unsigned long irq_flags;
+ if (devp->hd_flags & HPET_SHARED_IRQ) {
+ /*
+ * To prevent the interrupt handler from seeing an
+ * unwanted interrupt status bit, program the timer
+ * so that it will not fire in the near future ...
+ */
+ writel(readl(&timer->hpet_config) & ~Tn_TYPE_CNF_MASK,
+ &timer->hpet_config);
+ write_counter(read_counter(&hpet->hpet_mc),
+ &timer->hpet_compare);
+ /* ... and clear any left-over status. */
+ isr = 1 << (devp - devp->hd_hpets->hp_dev);
+ writel(isr, &hpet->hpet_isr);
+ }
+
sprintf(devp->hd_name, "hpet%d", (int)(devp - hpetp->hp_dev));
irq_flags = devp->hd_flags & HPET_SHARED_IRQ
? IRQF_SHARED : IRQF_DISABLED;
@@ -581,11 +596,10 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
break;
case HPET_INFO:
{
+ memset(info, 0, sizeof(*info));
if (devp->hd_ireqfreq)
info->hi_ireqfreq =
hpet_time_div(hpetp, devp->hd_ireqfreq);
- else
- info->hi_ireqfreq = 0;
info->hi_flags =
readq(&timer->hpet_config) & Tn_PER_INT_CAP_MASK;
info->hi_hpet = hpetp->hp_which;
@@ -811,7 +825,7 @@ int hpet_alloc(struct hpet_data *hdp)
struct hpets *hpetp;
size_t siz;
struct hpet __iomem *hpet;
- static struct hpets *last = NULL;
+ static struct hpets *last;
unsigned long period;
unsigned long long temp;
u32 remainder;
@@ -1000,6 +1014,8 @@ static int hpet_acpi_add(struct acpi_device *device)
return -ENODEV;
if (!data.hd_address || !data.hd_nirqs) {
+ if (data.hd_address)
+ iounmap(data.hd_address);
printk("%s: no address or irqs in _CRS\n", __func__);
return -ENODEV;
}
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index e537610..b293d57 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1665,6 +1665,17 @@ static int check_hotmod_int_op(const char *curr, const char *option,
return 0;
}
+static struct smi_info *smi_info_alloc(void)
+{
+ struct smi_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
+
+ if (info) {
+ spin_lock_init(&info->si_lock);
+ spin_lock_init(&info->msg_lock);
+ }
+ return info;
+}
+
static int hotmod_handler(const char *val, struct kernel_param *kp)
{
char *str = kstrdup(val, GFP_KERNEL);
@@ -1779,7 +1790,7 @@ static int hotmod_handler(const char *val, struct kernel_param *kp)
}
if (op == HM_ADD) {
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info) {
rv = -ENOMEM;
goto out;
@@ -1844,7 +1855,7 @@ static __devinit void hardcode_find_bmc(void)
if (!ports[i] && !addrs[i])
continue;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info)
return;
@@ -2027,7 +2038,7 @@ static __devinit int try_init_spmi(struct SPMITable *spmi)
return -ENODEV;
}
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info) {
printk(KERN_ERR PFX "Could not allocate SI data (3)\n");
return -ENOMEM;
@@ -2137,7 +2148,7 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
if (!acpi_dev)
return -ENODEV;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info)
return -ENOMEM;
@@ -2318,7 +2329,7 @@ static __devinit void try_init_dmi(struct dmi_ipmi_data *ipmi_data)
{
struct smi_info *info;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info) {
printk(KERN_ERR PFX "Could not allocate SI data\n");
return;
@@ -2425,7 +2436,7 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
int class_type = pdev->class & PCI_ERMC_CLASSCODE_TYPE_MASK;
struct smi_info *info;
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info)
return -ENOMEM;
@@ -2566,7 +2577,7 @@ static int __devinit ipmi_of_probe(struct platform_device *dev,
return -EINVAL;
}
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info) {
dev_err(&dev->dev,
@@ -3013,7 +3024,7 @@ static __devinit void default_find_bmc(void)
if (check_legacy_ioport(ipmi_defaults[i].port))
continue;
#endif
- info = kzalloc(sizeof(*info), GFP_KERNEL);
+ info = smi_info_alloc();
if (!info)
return;
@@ -3138,9 +3149,6 @@ static int try_smi_init(struct smi_info *new_smi)
goto out_err;
}
- spin_lock_init(&(new_smi->si_lock));
- spin_lock_init(&(new_smi->msg_lock));
-
/* Do low-level detection first. */
if (new_smi->handlers->detect(new_smi->si_sm)) {
if (new_smi->addr_source)
generated by cgit v1.1 at 2025-08-21 07:30:28 +0000