Input: make name, phys and uniq be 'const char *' because once
set noone should attempt to change them.
Signed-off-by: Dmitry Torokhov <[email protected]>
---
drivers/char/sonypi.c | 24 ++----------------------
drivers/input/misc/uinput.c | 23 ++++++++++++-----------
include/linux/input.h | 6 +++---
3 files changed, 17 insertions(+), 36 deletions(-)
Index: work/drivers/char/sonypi.c
===================================================================
--- work.orig/drivers/char/sonypi.c
+++ work/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);
}
Index: work/include/linux/input.h
===================================================================
--- work.orig/include/linux/input.h
+++ work/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)];
Index: work/drivers/input/misc/uinput.c
===================================================================
--- work.orig/drivers/input/misc/uinput.c
+++ work/drivers/input/misc/uinput.c
@@ -251,6 +251,7 @@ static int uinput_alloc_device(struct fi
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 fi
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 *in
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 *in
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:
-
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