9 files changed, 9 insertions, 16 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index ae6196760556..d2cfc584e202 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -237,7 +237,7 @@ config APPLICOM
 
 config SONYPI
 	tristate "Sony Vaio Programmable I/O Control Device support"
-	depends on X86_32 && PCI && INPUT
+	depends on X86_32 && PCI && INPUT && HAS_IOPORT
 	depends on ACPI_EC || !ACPI
 	help
 	  This driver enables access to the Sony Programmable I/O Control
diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index d2b00458761e..6ed24be3481d 100644
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -80,7 +80,6 @@ static int atmel_trng_read(struct hwrng *rng, void *buf, size_t max,
 	ret = 4;
 
 out:
-	pm_runtime_mark_last_busy(trng->dev);
 	pm_runtime_put_sync_autosuspend(trng->dev);
 	return ret;
 }
diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c
index 4db198849695..a5be9258037f 100644
--- a/drivers/char/hw_random/cctrng.c
+++ b/drivers/char/hw_random/cctrng.c
@@ -98,7 +98,6 @@ static void cc_trng_pm_put_suspend(struct device *dev)
 {
 	int rc = 0;
 
-	pm_runtime_mark_last_busy(dev);
 	rc = pm_runtime_put_autosuspend(dev);
 	if (rc)
 		dev_err(dev, "pm_runtime_put_autosuspend returned %x\n", rc);
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index b7fa1bc1122b..5808d09d12c4 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -98,7 +98,6 @@ static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 		max -= sizeof(u32);
 	}
 
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
@@ -143,7 +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/hw_random/npcm-rng.c b/drivers/char/hw_random/npcm-rng.c
index 3e308c890bd2..40d6e29dea03 100644
--- a/drivers/char/hw_random/npcm-rng.c
+++ b/drivers/char/hw_random/npcm-rng.c
@@ -80,7 +80,6 @@ static int npcm_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 		max--;
 	}
 
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c
index 8064c792caf0..aa71f61c3dc9 100644
--- a/drivers/char/hw_random/omap3-rom-rng.c
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -56,7 +56,6 @@ static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w)
 	else
 		r = 4;
 
-	pm_runtime_mark_last_busy(ddata->dev);
 	pm_runtime_put_autosuspend(ddata->dev);
 
 	return r;
diff --git a/drivers/char/hw_random/rockchip-rng.c b/drivers/char/hw_random/rockchip-rng.c
index fb4a30b95507..6e3ed4b85605 100644
--- a/drivers/char/hw_random/rockchip-rng.c
+++ b/drivers/char/hw_random/rockchip-rng.c
@@ -223,7 +223,6 @@ static int rk3568_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 	/* Read random data stored in the registers */
 	memcpy_fromio(buf, rk_rng->base + TRNG_RNG_DOUT, to_read);
 out:
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
@@ -263,7 +262,6 @@ static int rk3576_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait)
 	memcpy_fromio(buf, rk_rng->base + RKRNG_TRNG_DATA0, to_read);
 
 out:
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
@@ -355,7 +353,6 @@ out:
 	/* close the TRNG */
 	rk_rng_writel(rk_rng, TRNG_V1_CTRL_NOP, TRNG_V1_CTRL);
 
-	pm_runtime_mark_last_busy(rk_rng->dev);
 	pm_runtime_put_sync_autosuspend(rk_rng->dev);
 
 	return (ret < 0) ? ret : to_read;
diff --git a/drivers/char/hw_random/stm32-rng.c b/drivers/char/hw_random/stm32-rng.c
index 98edbe796bc5..9a8c00586ab0 100644
--- a/drivers/char/hw_random/stm32-rng.c
+++ b/drivers/char/hw_random/stm32-rng.c
@@ -255,7 +255,6 @@ static int stm32_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
 	}
 
 exit_rpm:
-	pm_runtime_mark_last_busy(priv->dev);
 	pm_runtime_put_sync_autosuspend(priv->dev);
 
 	return retval || !wait ? retval : -EIO;
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index d5accc10a110..558302a64dd9 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -289,15 +289,15 @@ EXPORT_SYMBOL(misc_deregister);
 static int __init misc_init(void)
 {
 	int err;
-	struct proc_dir_entry *ret;
+	struct proc_dir_entry *misc_proc_file;
 
-	ret = proc_create_seq("misc", 0, NULL, &misc_seq_ops);
+	misc_proc_file = proc_create_seq("misc", 0, NULL, &misc_seq_ops);
 	err = class_register(&misc_class);
 	if (err)
 		goto fail_remove;
 
-	err = -EIO;
-	if (__register_chrdev(MISC_MAJOR, 0, MINORMASK + 1, "misc", &misc_fops))
+	err = __register_chrdev(MISC_MAJOR, 0, MINORMASK + 1, "misc", &misc_fops);
+	if (err < 0)
 		goto fail_printk;
 	return 0;
 
@@ -305,7 +305,7 @@ fail_printk:
 	pr_err("unable to get major %d for misc devices\n", MISC_MAJOR);
 	class_unregister(&misc_class);
 fail_remove:
-	if (ret)
+	if (misc_proc_file)
 		remove_proc_entry("misc", NULL);
 	return err;
 }