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| author |   Axel Lin <axel.lin@gmail.com> | 2011-01-12 16:59:15 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 08:03:05 -0800 |
| commit | 125c7135251de3aea1429968aea9bdfcb6535fc7 (patch) | |
| tree | e7f610a5aad18ed24887c0d1a0e71b94eaf603c7 /drivers/leds/leds-pca9532.c | |
| parent | drivers/leds/leds-lp5521.c: fix potential buffer overflow (diff) | |
| download | linux-dev-125c7135251de3aea1429968aea9bdfcb6535fc7.tar.xz linux-dev-125c7135251de3aea1429968aea9bdfcb6535fc7.zip | |
leds: leds-pca9532 cleanups
- Remove unneeded input_free_device() after input_unregister_device().
- Add pca9532_destroy_devices() function for destroy devices.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/leds/leds-pca9532.c')
| -rw-r--r-- | drivers/leds/leds-pca9532.c | 66 |
1 files changed, 28 insertions, 38 deletions
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c index 43d08756d823..afac338d5025 100644 --- a/drivers/leds/leds-pca9532.c +++ b/drivers/leds/leds-pca9532.c @@ -200,6 +200,32 @@ static void pca9532_led_work(struct work_struct *work) pca9532_setled(led); } +static void pca9532_destroy_devices(struct pca9532_data *data, int n_devs) +{ + int i = n_devs; + + if (!data) + return; + + while (--i >= 0) { + switch (data->leds[i].type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led_classdev_unregister(&data->leds[i].ldev); + cancel_work_sync(&data->leds[i].work); + break; + case PCA9532_TYPE_N2100_BEEP: + if (data->idev != NULL) { + input_unregister_device(data->idev); + cancel_work_sync(&data->work); + data->idev = NULL; + } + break; + } + } +} + static int pca9532_configure(struct i2c_client *client, struct pca9532_data *data, struct pca9532_platform_data *pdata) { @@ -274,25 +300,7 @@ static int pca9532_configure(struct i2c_client *client, return 0; exit: - if (i > 0) - for (i = i - 1; i >= 0; i--) - switch (data->leds[i].type) { - case PCA9532_TYPE_NONE: - break; - case PCA9532_TYPE_LED: - led_classdev_unregister(&data->leds[i].ldev); - cancel_work_sync(&data->leds[i].work); - break; - case PCA9532_TYPE_N2100_BEEP: - if (data->idev != NULL) { - input_unregister_device(data->idev); - input_free_device(data->idev); - cancel_work_sync(&data->work); - data->idev = NULL; - } - break; - } - + pca9532_destroy_devices(data, i); return err; } @@ -329,25 +337,7 @@ static int pca9532_probe(struct i2c_client *client, static int pca9532_remove(struct i2c_client *client) { struct pca9532_data *data = i2c_get_clientdata(client); - int i; - for (i = 0; i < 16; i++) - switch (data->leds[i].type) { - case PCA9532_TYPE_NONE: - break; - case PCA9532_TYPE_LED: - led_classdev_unregister(&data->leds[i].ldev); - cancel_work_sync(&data->leds[i].work); - break; - case PCA9532_TYPE_N2100_BEEP: - if (data->idev != NULL) { - input_unregister_device(data->idev); - input_free_device(data->idev); - cancel_work_sync(&data->work); - data->idev = NULL; - } - break; - } - + pca9532_destroy_devices(data, 16); kfree(data); return 0; } |