diff options
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/pc8736x_gpio.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c index bfc45e0cc602..11bd78c80628 100644 --- a/drivers/char/pc8736x_gpio.c +++ b/drivers/char/pc8736x_gpio.c | |||
@@ -259,7 +259,8 @@ static struct cdev pc8736x_gpio_cdev; | |||
259 | 259 | ||
260 | static int __init pc8736x_gpio_init(void) | 260 | static int __init pc8736x_gpio_init(void) |
261 | { | 261 | { |
262 | int rc = 0; | 262 | int rc; |
263 | dev_t devid; | ||
263 | 264 | ||
264 | pdev = platform_device_alloc(DEVNAME, 0); | 265 | pdev = platform_device_alloc(DEVNAME, 0); |
265 | if (!pdev) | 266 | if (!pdev) |
@@ -307,7 +308,14 @@ static int __init pc8736x_gpio_init(void) | |||
307 | } | 308 | } |
308 | dev_info(&pdev->dev, "GPIO ioport %x reserved\n", pc8736x_gpio_base); | 309 | dev_info(&pdev->dev, "GPIO ioport %x reserved\n", pc8736x_gpio_base); |
309 | 310 | ||
310 | rc = register_chrdev(major, DEVNAME, &pc8736x_gpio_fops); | 311 | if (major) { |
312 | devid = MKDEV(major, 0); | ||
313 | rc = register_chrdev_region(devid, PC8736X_GPIO_CT, DEVNAME); | ||
314 | } else { | ||
315 | rc = alloc_chrdev_region(&devid, 0, PC8736X_GPIO_CT, DEVNAME); | ||
316 | major = MAJOR(devid); | ||
317 | } | ||
318 | |||
311 | if (rc < 0) { | 319 | if (rc < 0) { |
312 | dev_err(&pdev->dev, "register-chrdev failed: %d\n", rc); | 320 | dev_err(&pdev->dev, "register-chrdev failed: %d\n", rc); |
313 | goto undo_request_region; | 321 | goto undo_request_region; |
@@ -318,6 +326,11 @@ static int __init pc8736x_gpio_init(void) | |||
318 | } | 326 | } |
319 | 327 | ||
320 | pc8736x_init_shadow(); | 328 | pc8736x_init_shadow(); |
329 | |||
330 | /* ignore minor errs, and succeed */ | ||
331 | cdev_init(&pc8736x_gpio_cdev, &pc8736x_gpio_fops); | ||
332 | cdev_add(&pc8736x_gpio_cdev, devid, PC8736X_GPIO_CT); | ||
333 | |||
321 | return 0; | 334 | return 0; |
322 | 335 | ||
323 | undo_request_region: | 336 | undo_request_region: |