Input: make name, phys and uniq be 'const char *' because once

       set noone should attempt to change them.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

3 files changed, 17 insertions, 36 deletions

diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index 983915bf87f1..cefbe985e55c 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -1228,14 +1228,7 @@ static int __devinit sonypi_probe(void)
                 sonypi_device.input_jog_dev.keybit[LONG(BTN_MOUSE)] =
                         BIT(BTN_MIDDLE);
                 sonypi_device.input_jog_dev.relbit[0] = BIT(REL_WHEEL);
-                sonypi_device.input_jog_dev.name =
-                        kmalloc(sizeof(SONYPI_JOG_INPUTNAME), GFP_KERNEL);
-                if (!sonypi_device.input_jog_dev.name) {
-                        printk(KERN_ERR "sonypi: kmalloc failed\n");
-                        ret = -ENOMEM;
-                        goto out_inkmallocinput1;
-                }
-                sprintf(sonypi_device.input_jog_dev.name, SONYPI_JOG_INPUTNAME);
+                sonypi_device.input_jog_dev.name = SONYPI_JOG_INPUTNAME;
                 sonypi_device.input_jog_dev.id.bustype = BUS_ISA;
                 sonypi_device.input_jog_dev.id.vendor = PCI_VENDOR_ID_SONY;
 
@@ -1249,14 +1242,7 @@ static int __devinit sonypi_probe(void)
                         if (sonypi_inputkeys[i].inputev)
                                 set_bit(sonypi_inputkeys[i].inputev,
                                         sonypi_device.input_key_dev.keybit);
-                sonypi_device.input_key_dev.name =
-                        kmalloc(sizeof(SONYPI_KEY_INPUTNAME), GFP_KERNEL);
-                if (!sonypi_device.input_key_dev.name) {
-                        printk(KERN_ERR "sonypi: kmalloc failed\n");
-                        ret = -ENOMEM;
-                        goto out_inkmallocinput2;
-                }
-                sprintf(sonypi_device.input_key_dev.name, SONYPI_KEY_INPUTNAME);
+                sonypi_device.input_key_dev.name = SONYPI_KEY_INPUTNAME;
                 sonypi_device.input_key_dev.id.bustype = BUS_ISA;
                 sonypi_device.input_key_dev.id.vendor = PCI_VENDOR_ID_SONY;
 
@@ -1314,11 +1300,7 @@ out_platformdev:
         kfifo_free(sonypi_device.input_fifo);
 out_infifo:
         input_unregister_device(&sonypi_device.input_key_dev);
-        kfree(sonypi_device.input_key_dev.name);
-out_inkmallocinput2:
         input_unregister_device(&sonypi_device.input_jog_dev);
-        kfree(sonypi_device.input_jog_dev.name);
-out_inkmallocinput1:
         free_irq(sonypi_device.irq, sonypi_irq);
 out_reqirq:
         release_region(sonypi_device.ioport1, sonypi_device.region_size);
@@ -1345,9 +1327,7 @@ static void __devexit sonypi_remove(void)
 
         if (useinput) {
                 input_unregister_device(&sonypi_device.input_key_dev);
-                kfree(sonypi_device.input_key_dev.name);
                 input_unregister_device(&sonypi_device.input_jog_dev);
-                kfree(sonypi_device.input_jog_dev.name);
                 kfifo_free(sonypi_device.input_fifo);
         }
 
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index c3eebf593ab6..d5c5b32045af 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -251,6 +251,7 @@ static int uinput_alloc_device(struct file *file, const char __user *buffer, siz
         struct uinput_user_dev  *user_dev;
         struct input_dev        *dev;
         struct uinput_device    *udev;
+        char                    *name;
         int                     size;
         int                     retval;
 
@@ -274,13 +275,13 @@ static int uinput_alloc_device(struct file *file, const char __user *buffer, siz
                 kfree(dev->name);
 
         size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
-        dev->name = kmalloc(size, GFP_KERNEL);
-        if (!dev->name) {
+        dev->name = name = kmalloc(size, GFP_KERNEL);
+        if (!name) {
                 retval = -ENOMEM;
                 goto exit;
         }
+        strlcpy(name, user_dev->name, size);
 
-        strlcpy(dev->name, user_dev->name, size);
         dev->id.bustype = user_dev->id.bustype;
         dev->id.vendor  = user_dev->id.vendor;
         dev->id.product = user_dev->id.product;
@@ -397,6 +398,7 @@ static int uinput_ioctl(struct inode *inode, struct file *file, unsigned int cmd
         struct uinput_ff_erase  ff_erase;
         struct uinput_request   *req;
         int                     length;
+        char                    *phys;
 
         udev = file->private_data;
 
@@ -494,20 +496,19 @@ static int uinput_ioctl(struct inode *inode, struct file *file, unsigned int cmd
                                 retval = -EFAULT;
                                 break;
                         }
-                        if (NULL != udev->dev->phys)
-                                kfree(udev->dev->phys);
-                        udev->dev->phys = kmalloc(length, GFP_KERNEL);
-                        if (!udev->dev->phys) {
+                        kfree(udev->dev->phys);
+                        udev->dev->phys = phys = kmalloc(length, GFP_KERNEL);
+                        if (!phys) {
                                 retval = -ENOMEM;
                                 break;
                         }
-                        if (copy_from_user(udev->dev->phys, p, length)) {
-                                retval = -EFAULT;
-                                kfree(udev->dev->phys);
+                        if (copy_from_user(phys, p, length)) {
                                 udev->dev->phys = NULL;
+                                kfree(phys);
+                                retval = -EFAULT;
                                 break;
                         }
-                        udev->dev->phys[length - 1] = '\0';
+                        phys[length - 1] = '\0';
                         break;
 
                 case UI_BEGIN_FF_UPLOAD:
diff --git a/include/linux/input.h b/include/linux/input.h
index b9cc0ac71f44..bdc53c6cc962 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -811,9 +811,9 @@ struct input_dev {
 
         void *private;
 
-        char *name;
-        char *phys;
-        char *uniq;
+        const char *name;
+        const char *phys;
+        const char *uniq;
         struct input_id id;
 
         unsigned long evbit[NBITS(EV_MAX)];