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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2013-02-27 17:05:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-27 19:10:23 -0800 |
| commit | 507063b2a435b24951bce8e1f67ab65cda490f1b (patch) | |
| tree | d166bc08e67dd39a2c360de5558ae0499a2ac6a2 /drivers/pps | |
| parent | 11cd3db01bd8cc16aa82347582ef982cddc786e3 (diff) | |
| download | lwn-507063b2a435b24951bce8e1f67ab65cda490f1b.tar.gz lwn-507063b2a435b24951bce8e1f67ab65cda490f1b.zip | |
drivers/pps/clients/pps-gpio.c: use devm_kzalloc
devm_kzalloc allocates memory that is released when a driver detaches.
This patch uses devm_kzalloc for data that is allocated in the probe
function of a platform device and is only freed in the remove function.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pps')
| -rw-r--r-- | drivers/pps/clients/pps-gpio.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/pps/clients/pps-gpio.c b/drivers/pps/clients/pps-gpio.c index 2bf0c1b608dd..d3db26e46489 100644 --- a/drivers/pps/clients/pps-gpio.c +++ b/drivers/pps/clients/pps-gpio.c @@ -128,7 +128,8 @@ static int pps_gpio_probe(struct platform_device *pdev) } /* allocate space for device info */ - data = kzalloc(sizeof(struct pps_gpio_device_data), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, sizeof(struct pps_gpio_device_data), + GFP_KERNEL); if (data == NULL) { err = -ENOMEM; goto return_error; @@ -150,7 +151,6 @@ static int pps_gpio_probe(struct platform_device *pdev) pps_default_params |= PPS_CAPTURECLEAR | PPS_OFFSETCLEAR; data->pps = pps_register_source(&data->info, pps_default_params); if (data->pps == NULL) { - kfree(data); pr_err("failed to register IRQ %d as PPS source\n", irq); err = -EINVAL; goto return_error; @@ -164,7 +164,6 @@ static int pps_gpio_probe(struct platform_device *pdev) get_irqf_trigger_flags(pdata), data->info.name, data); if (ret) { pps_unregister_source(data->pps); - kfree(data); pr_err("failed to acquire IRQ %d\n", irq); err = -EINVAL; goto return_error; @@ -190,7 +189,6 @@ static int pps_gpio_remove(struct platform_device *pdev) gpio_free(pdata->gpio_pin); pps_unregister_source(data->pps); pr_info("removed IRQ %d as PPS source\n", data->irq); - kfree(data); return 0; } |