Merge commit 'origin/master' into next

4 files changed, 83 insertions, 35 deletions

diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 34cf04e21795..fd50ead59c79 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -767,16 +767,19 @@ int __init agp_amd64_init(void)
 
 static int __init agp_amd64_mod_init(void)
 {
+#ifndef MODULE
 	if (gart_iommu_aperture)
 		return agp_bridges_found ? 0 : -ENODEV;
-
+#endif
 	return agp_amd64_init();
 }
 
 static void __exit agp_amd64_cleanup(void)
 {
+#ifndef MODULE
 	if (gart_iommu_aperture)
 		return;
+#endif
 	if (aperture_resource)
 		release_resource(aperture_resource);
 	pci_unregister_driver(&agp_amd64_pci_driver);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index be832b6f8279..48788db4e280 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -395,6 +395,7 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 	unsigned long p = *ppos;
 	ssize_t low_count, read, sz;
 	char * kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
+	int err = 0;
 
 	read = 0;
 	if (p < (unsigned long) high_memory) {
@@ -441,12 +442,16 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 			return -ENOMEM;
 		while (count > 0) {
 			sz = size_inside_page(p, count);
+			if (!is_vmalloc_or_module_addr((void *)p)) {
+				err = -ENXIO;
+				break;
+			}
 			sz = vread(kbuf, (char *)p, sz);
 			if (!sz)
 				break;
 			if (copy_to_user(buf, kbuf, sz)) {
-				free_page((unsigned long)kbuf);
-				return -EFAULT;
+				err = -EFAULT;
+				break;
 			}
 			count -= sz;
 			buf += sz;
@@ -455,8 +460,8 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 		}
 		free_page((unsigned long)kbuf);
 	}
- 	*ppos = p;
- 	return read;
+	*ppos = p;
+	return read ? read : err;
 }
 
 
@@ -520,6 +525,7 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
 	ssize_t wrote = 0;
 	ssize_t virtr = 0;
 	char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
+	int err = 0;
 
 	if (p < (unsigned long) high_memory) {
 		unsigned long to_write = min_t(unsigned long, count,
@@ -540,14 +546,16 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
 			unsigned long sz = size_inside_page(p, count);
 			unsigned long n;
 
+			if (!is_vmalloc_or_module_addr((void *)p)) {
+				err = -ENXIO;
+				break;
+			}
 			n = copy_from_user(kbuf, buf, sz);
 			if (n) {
-				if (wrote + virtr)
-					break;
-				free_page((unsigned long)kbuf);
-				return -EFAULT;
+				err = -EFAULT;
+				break;
 			}
-			sz = vwrite(kbuf, (char *)p, sz);
+			vwrite(kbuf, (char *)p, sz);
 			count -= sz;
 			buf += sz;
 			virtr += sz;
@@ -556,8 +564,8 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
 		free_page((unsigned long)kbuf);
 	}
 
- 	*ppos = p;
- 	return virtr + wrote;
+	*ppos = p;
+	return virtr + wrote ? : err;
 }
 #endif
 
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index ecba4942fc8e..f58440791e65 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -39,12 +39,12 @@
 struct tpm_inf_dev {
 	int iotype;
 
-	void __iomem *mem_base;		/* MMIO ioremap'd addr */
-	unsigned long map_base;		/* phys MMIO base */
-	unsigned long map_size;		/* MMIO region size */
-	unsigned int index_off;		/* index register offset */
+	void __iomem *mem_base;	/* MMIO ioremap'd addr */
+	unsigned long map_base;	/* phys MMIO base */
+	unsigned long map_size;	/* MMIO region size */
+	unsigned int index_off;	/* index register offset */
 
-	unsigned int data_regs;		/* Data registers */
+	unsigned int data_regs;	/* Data registers */
 	unsigned int data_size;
 
 	unsigned int config_port;	/* IO Port config index reg */
@@ -406,14 +406,14 @@ static const struct tpm_vendor_specific tpm_inf = {
 	.miscdev = {.fops = &inf_ops,},
 };
 
-static const struct pnp_device_id tpm_pnp_tbl[] = {
+static const struct pnp_device_id tpm_inf_pnp_tbl[] = {
 	/* Infineon TPMs */
 	{"IFX0101", 0},
 	{"IFX0102", 0},
 	{"", 0}
 };
 
-MODULE_DEVICE_TABLE(pnp, tpm_pnp_tbl);
+MODULE_DEVICE_TABLE(pnp, tpm_inf_pnp_tbl);
 
 static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev,
 				       const struct pnp_device_id *dev_id)
@@ -430,7 +430,7 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev,
 	if (pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) &&
 	    !(pnp_port_flags(dev, 0) & IORESOURCE_DISABLED)) {
 
-	    	tpm_dev.iotype = TPM_INF_IO_PORT;
+		tpm_dev.iotype = TPM_INF_IO_PORT;
 
 		tpm_dev.config_port = pnp_port_start(dev, 0);
 		tpm_dev.config_size = pnp_port_len(dev, 0);
@@ -459,9 +459,9 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev,
 			goto err_last;
 		}
 	} else if (pnp_mem_valid(dev, 0) &&
-	           !(pnp_mem_flags(dev, 0) & IORESOURCE_DISABLED)) {
+		   !(pnp_mem_flags(dev, 0) & IORESOURCE_DISABLED)) {
 
-	    	tpm_dev.iotype = TPM_INF_IO_MEM;
+		tpm_dev.iotype = TPM_INF_IO_MEM;
 
 		tpm_dev.map_base = pnp_mem_start(dev, 0);
 		tpm_dev.map_size = pnp_mem_len(dev, 0);
@@ -563,11 +563,11 @@ static int __devinit tpm_inf_pnp_probe(struct pnp_dev *dev,
 			 "product id 0x%02x%02x"
 			 "%s\n",
 			 tpm_dev.iotype == TPM_INF_IO_PORT ?
-				tpm_dev.config_port :
-				tpm_dev.map_base + tpm_dev.index_off,
+			 tpm_dev.config_port :
+			 tpm_dev.map_base + tpm_dev.index_off,
 			 tpm_dev.iotype == TPM_INF_IO_PORT ?
-				tpm_dev.data_regs :
-				tpm_dev.map_base + tpm_dev.data_regs,
+			 tpm_dev.data_regs :
+			 tpm_dev.map_base + tpm_dev.data_regs,
 			 version[0], version[1],
 			 vendorid[0], vendorid[1],
 			 productid[0], productid[1], chipname);
@@ -607,20 +607,55 @@ static __devexit void tpm_inf_pnp_remove(struct pnp_dev *dev)
 			iounmap(tpm_dev.mem_base);
 			release_mem_region(tpm_dev.map_base, tpm_dev.map_size);
 		}
+		tpm_dev_vendor_release(chip);
 		tpm_remove_hardware(chip->dev);
 	}
 }
 
+static int tpm_inf_pnp_suspend(struct pnp_dev *dev, pm_message_t pm_state)
+{
+	struct tpm_chip *chip = pnp_get_drvdata(dev);
+	int rc;
+	if (chip) {
+		u8 savestate[] = {
+			0, 193,	/* TPM_TAG_RQU_COMMAND */
+			0, 0, 0, 10,	/* blob length (in bytes) */
+			0, 0, 0, 152	/* TPM_ORD_SaveState */
+		};
+		dev_info(&dev->dev, "saving TPM state\n");
+		rc = tpm_inf_send(chip, savestate, sizeof(savestate));
+		if (rc < 0) {
+			dev_err(&dev->dev, "error while saving TPM state\n");
+			return rc;
+		}
+	}
+	return 0;
+}
+
+static int tpm_inf_pnp_resume(struct pnp_dev *dev)
+{
+	/* Re-configure TPM after suspending */
+	tpm_config_out(ENABLE_REGISTER_PAIR, TPM_INF_ADDR);
+	tpm_config_out(IOLIMH, TPM_INF_ADDR);
+	tpm_config_out((tpm_dev.data_regs >> 8) & 0xff, TPM_INF_DATA);
+	tpm_config_out(IOLIML, TPM_INF_ADDR);
+	tpm_config_out((tpm_dev.data_regs & 0xff), TPM_INF_DATA);
+	/* activate register */
+	tpm_config_out(TPM_DAR, TPM_INF_ADDR);
+	tpm_config_out(0x01, TPM_INF_DATA);
+	tpm_config_out(DISABLE_REGISTER_PAIR, TPM_INF_ADDR);
+	/* disable RESET, LP and IRQC */
+	tpm_data_out(RESET_LP_IRQC_DISABLE, CMD);
+	return tpm_pm_resume(&dev->dev);
+}
+
 static struct pnp_driver tpm_inf_pnp_driver = {
 	.name = "tpm_inf_pnp",
-	.driver = {
-		.owner = THIS_MODULE,
-		.suspend = tpm_pm_suspend,
-		.resume = tpm_pm_resume,
-	},
-	.id_table = tpm_pnp_tbl,
+	.id_table = tpm_inf_pnp_tbl,
 	.probe = tpm_inf_pnp_probe,
-	.remove = __devexit_p(tpm_inf_pnp_remove),
+	.suspend = tpm_inf_pnp_suspend,
+	.resume = tpm_inf_pnp_resume,
+	.remove = __devexit_p(tpm_inf_pnp_remove)
 };
 
 static int __init init_inf(void)
@@ -638,5 +673,5 @@ module_exit(cleanup_inf);
 
 MODULE_AUTHOR("Marcel Selhorst <m.selhorst@sirrix.com>");
 MODULE_DESCRIPTION("Driver for Infineon TPM SLD 9630 TT 1.1 / SLB 9635 TT 1.2");
-MODULE_VERSION("1.9");
+MODULE_VERSION("1.9.2");
 MODULE_LICENSE("GPL");
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index c6f3b48be9dd..dcb9083ecde0 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -1951,8 +1951,10 @@ static int tty_fasync(int fd, struct file *filp, int on)
 			pid = task_pid(current);
 			type = PIDTYPE_PID;
 		}
-		retval = __f_setown(filp, pid, type, 0);
+		get_pid(pid);
 		spin_unlock_irqrestore(&tty->ctrl_lock, flags);
+		retval = __f_setown(filp, pid, type, 0);
+		put_pid(pid);
 		if (retval)
 			goto out;
 	} else {