Messages in this thread Patch in this message | | | Date | Mon, 25 Jul 2005 00:34:57 -0500 | From | Dmitry Torokhov <> | Subject | [patch 08/24] input: make name, phys and uniq const char |
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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> ---
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: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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