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-rw-r--r--drivers/uio/uio.c24
-rw-r--r--drivers/uio/uio_cif.c4
-rw-r--r--drivers/uio/uio_fsl_elbc_gpcm.c1
-rw-r--r--drivers/uio/uio_hv_generic.c4
-rw-r--r--drivers/uio/uio_netx.c3
-rw-r--r--drivers/uio/uio_pci_generic.c3
-rw-r--r--drivers/uio/uio_pruss.c69
-rw-r--r--drivers/uio/uio_sercos3.c1
8 files changed, 60 insertions, 49 deletions
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index d7fb49366e78..70a7981b94b3 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/uio/uio.c
*
@@ -9,8 +10,6 @@
* Userspace IO
*
* Base Functions
- *
- * Licensed under the GPLv2 only.
*/
#include <linux/module.h>
@@ -622,6 +621,12 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
ssize_t retval;
s32 irq_on;
+ if (count != sizeof(s32))
+ return -EINVAL;
+
+ if (copy_from_user(&irq_on, buf, count))
+ return -EFAULT;
+
mutex_lock(&idev->info_lock);
if (!idev->info) {
retval = -EINVAL;
@@ -633,21 +638,11 @@ static ssize_t uio_write(struct file *filep, const char __user *buf,
goto out;
}
- if (count != sizeof(s32)) {
- retval = -EINVAL;
- goto out;
- }
-
if (!idev->info->irqcontrol) {
retval = -ENOSYS;
goto out;
}
- if (copy_from_user(&irq_on, buf, count)) {
- retval = -EFAULT;
- goto out;
- }
-
retval = idev->info->irqcontrol(idev->info, irq_on);
out:
@@ -811,7 +806,7 @@ static int uio_mmap(struct file *filep, struct vm_area_struct *vma)
out:
mutex_unlock(&idev->info_lock);
- return 0;
+ return ret;
}
static const struct file_operations uio_fops = {
@@ -955,8 +950,6 @@ int __uio_register_device(struct module *owner,
if (ret)
goto err_uio_dev_add_attributes;
- info->uio_dev = idev;
-
if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
/*
* Note that we deliberately don't use devm_request_irq
@@ -972,6 +965,7 @@ int __uio_register_device(struct module *owner,
goto err_request_irq;
}
+ info->uio_dev = idev;
return 0;
err_request_irq:
diff --git a/drivers/uio/uio_cif.c b/drivers/uio/uio_cif.c
index 30f533ce3758..ab60186f9759 100644
--- a/drivers/uio/uio_cif.c
+++ b/drivers/uio/uio_cif.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* UIO Hilscher CIF card driver
*
* (C) 2007 Hans J. Koch <hjk@hansjkoch.de>
* Original code (C) 2005 Benedikt Spranger <b.spranger@linutronix.de>
- *
- * Licensed under GPL version 2 only.
- *
*/
#include <linux/device.h>
diff --git a/drivers/uio/uio_fsl_elbc_gpcm.c b/drivers/uio/uio_fsl_elbc_gpcm.c
index b55191335d90..bbc17effae5e 100644
--- a/drivers/uio/uio_fsl_elbc_gpcm.c
+++ b/drivers/uio/uio_fsl_elbc_gpcm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/* uio_fsl_elbc_gpcm: UIO driver for eLBC/GPCM peripherals
Copyright (C) 2014 Linutronix GmbH
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
index c690d100adcd..e401be8321ab 100644
--- a/drivers/uio/uio_hv_generic.c
+++ b/drivers/uio/uio_hv_generic.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* uio_hv_generic - generic UIO driver for VMBus
*
* Copyright (c) 2013-2016 Brocade Communications Systems, Inc.
* Copyright (c) 2016, Microsoft Corporation.
*
- *
- * This work is licensed under the terms of the GNU GPL, version 2.
- *
* Since the driver does not declare any device ids, you must allocate
* id and bind the device to the driver yourself. For example:
*
diff --git a/drivers/uio/uio_netx.c b/drivers/uio/uio_netx.c
index 4c345db8b016..9ae29ffde410 100644
--- a/drivers/uio/uio_netx.c
+++ b/drivers/uio/uio_netx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* UIO driver for Hilscher NetX based fieldbus cards (cifX, comX).
* See http://www.hilscher.com for details.
@@ -5,8 +6,6 @@
* (C) 2007 Hans J. Koch <hjk@hansjkoch.de>
* (C) 2008 Manuel Traut <manut@linutronix.de>
*
- * Licensed under GPL version 2 only.
- *
*/
#include <linux/device.h>
diff --git a/drivers/uio/uio_pci_generic.c b/drivers/uio/uio_pci_generic.c
index a56fdf972dbe..8773e373ffe5 100644
--- a/drivers/uio/uio_pci_generic.c
+++ b/drivers/uio/uio_pci_generic.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/* uio_pci_generic - generic UIO driver for PCI 2.3 devices
*
* Copyright (C) 2009 Red Hat, Inc.
* Author: Michael S. Tsirkin <mst@redhat.com>
*
- * This work is licensed under the terms of the GNU GPL, version 2.
- *
* Since the driver does not declare any device ids, you must allocate
* id and bind the device to the driver yourself. For example:
*
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index 91aea8823af5..1cc175d3c25c 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -122,7 +122,7 @@ static int pruss_probe(struct platform_device *pdev)
struct uio_pruss_dev *gdev;
struct resource *regs_prussio;
struct device *dev = &pdev->dev;
- int ret = -ENODEV, cnt = 0, len;
+ int ret, cnt, i, len;
struct uio_pruss_pdata *pdata = dev_get_platdata(dev);
gdev = kzalloc(sizeof(struct uio_pruss_dev), GFP_KERNEL);
@@ -131,8 +131,8 @@ static int pruss_probe(struct platform_device *pdev)
gdev->info = kcalloc(MAX_PRUSS_EVT, sizeof(*p), GFP_KERNEL);
if (!gdev->info) {
- kfree(gdev);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_free_gdev;
}
/* Power on PRU in case its not done as part of boot-loader */
@@ -140,29 +140,26 @@ static int pruss_probe(struct platform_device *pdev)
if (IS_ERR(gdev->pruss_clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(gdev->pruss_clk);
- kfree(gdev->info);
- kfree(gdev);
- return ret;
- } else {
- ret = clk_enable(gdev->pruss_clk);
- if (ret) {
- dev_err(dev, "Failed to enable clock\n");
- clk_put(gdev->pruss_clk);
- kfree(gdev->info);
- kfree(gdev);
- return ret;
- }
+ goto err_free_info;
+ }
+
+ ret = clk_enable(gdev->pruss_clk);
+ if (ret) {
+ dev_err(dev, "Failed to enable clock\n");
+ goto err_clk_put;
}
regs_prussio = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!regs_prussio) {
dev_err(dev, "No PRUSS I/O resource specified\n");
- goto out_free;
+ ret = -EIO;
+ goto err_clk_disable;
}
if (!regs_prussio->start) {
dev_err(dev, "Invalid memory resource\n");
- goto out_free;
+ ret = -EIO;
+ goto err_clk_disable;
}
if (pdata->sram_pool) {
@@ -172,7 +169,8 @@ static int pruss_probe(struct platform_device *pdev)
sram_pool_sz, &gdev->sram_paddr);
if (!gdev->sram_vaddr) {
dev_err(dev, "Could not allocate SRAM pool\n");
- goto out_free;
+ ret = -ENOMEM;
+ goto err_clk_disable;
}
}
@@ -180,14 +178,16 @@ static int pruss_probe(struct platform_device *pdev)
&(gdev->ddr_paddr), GFP_KERNEL | GFP_DMA);
if (!gdev->ddr_vaddr) {
dev_err(dev, "Could not allocate external memory\n");
- goto out_free;
+ ret = -ENOMEM;
+ goto err_free_sram;
}
len = resource_size(regs_prussio);
gdev->prussio_vaddr = ioremap(regs_prussio->start, len);
if (!gdev->prussio_vaddr) {
dev_err(dev, "Can't remap PRUSS I/O address range\n");
- goto out_free;
+ ret = -ENOMEM;
+ goto err_free_ddr_vaddr;
}
gdev->pintc_base = pdata->pintc_base;
@@ -215,15 +215,36 @@ static int pruss_probe(struct platform_device *pdev)
p->priv = gdev;
ret = uio_register_device(dev, p);
- if (ret < 0)
- goto out_free;
+ if (ret < 0) {
+ kfree(p->name);
+ goto err_unloop;
+ }
}
platform_set_drvdata(pdev, gdev);
return 0;
-out_free:
- pruss_cleanup(dev, gdev);
+err_unloop:
+ for (i = 0, p = gdev->info; i < cnt; i++, p++) {
+ uio_unregister_device(p);
+ kfree(p->name);
+ }
+ iounmap(gdev->prussio_vaddr);
+err_free_ddr_vaddr:
+ dma_free_coherent(dev, extram_pool_sz, gdev->ddr_vaddr,
+ gdev->ddr_paddr);
+err_free_sram:
+ if (pdata->sram_pool)
+ gen_pool_free(gdev->sram_pool, gdev->sram_vaddr, sram_pool_sz);
+err_clk_disable:
+ clk_disable(gdev->pruss_clk);
+err_clk_put:
+ clk_put(gdev->pruss_clk);
+err_free_info:
+ kfree(gdev->info);
+err_free_gdev:
+ kfree(gdev);
+
return ret;
}
diff --git a/drivers/uio/uio_sercos3.c b/drivers/uio/uio_sercos3.c
index 9cfdfcafa262..9658a0887fee 100644
--- a/drivers/uio/uio_sercos3.c
+++ b/drivers/uio/uio_sercos3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/* sercos3: UIO driver for the Automata Sercos III PCI card
Copyright (C) 2008 Linutronix GmbH
generated by cgit (git 2.34.1) at 2024-05-27 21:01:08 +0000