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authorHimangi Saraogi <himangi774@gmail.com>2014-05-22 10:40:42 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-05-28 23:49:10 -0700
commitec62c7a8f8ebb81a07ac68a5126ad74dca113b09 (patch)
treed785e7d4c6c44016462279ed26f77de4763cf369 /drivers/input
parent4f8edc3c9c7e78f7c22338470d0f330f11b1ba9a (diff)
Input: adp5520-keys - switch to using managed resources
Let's switch the driver to use managed resources, this will simplify error handling and driver unbinding logic. Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/keyboard/adp5520-keys.c32
1 files changed, 10 insertions, 22 deletions
diff --git a/drivers/input/keyboard/adp5520-keys.c b/drivers/input/keyboard/adp5520-keys.c
index 4cc14c2fa7d5..7f4a8b58efc1 100644
--- a/drivers/input/keyboard/adp5520-keys.c
+++ b/drivers/input/keyboard/adp5520-keys.c
@@ -12,6 +12,7 @@
#include <linux/input.h>
#include <linux/mfd/adp5520.h>
#include <linux/slab.h>
+#include <linux/device.h>
struct adp5520_keys {
struct input_dev *input;
@@ -81,7 +82,7 @@ static int adp5520_keys_probe(struct platform_device *pdev)
return -EINVAL;
}
- if (pdata == NULL) {
+ if (!pdata) {
dev_err(&pdev->dev, "missing platform data\n");
return -EINVAL;
}
@@ -89,17 +90,15 @@ static int adp5520_keys_probe(struct platform_device *pdev)
if (!(pdata->rows_en_mask && pdata->cols_en_mask))
return -EINVAL;
- dev = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (dev == NULL) {
+ dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
dev_err(&pdev->dev, "failed to alloc memory\n");
return -ENOMEM;
}
- input = input_allocate_device();
- if (!input) {
- ret = -ENOMEM;
- goto err;
- }
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input)
+ return -ENOMEM;
dev->master = pdev->dev.parent;
dev->input = input;
@@ -135,7 +134,7 @@ static int adp5520_keys_probe(struct platform_device *pdev)
ret = input_register_device(input);
if (ret) {
dev_err(&pdev->dev, "unable to register input device\n");
- goto err;
+ return ret;
}
en_mask = pdata->rows_en_mask | pdata->cols_en_mask;
@@ -157,8 +156,7 @@ static int adp5520_keys_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "failed to write\n");
- ret = -EIO;
- goto err1;
+ return -EIO;
}
dev->notifier.notifier_call = adp5520_keys_notifier;
@@ -166,19 +164,11 @@ static int adp5520_keys_probe(struct platform_device *pdev)
ADP5520_KP_IEN | ADP5520_KR_IEN);
if (ret) {
dev_err(&pdev->dev, "failed to register notifier\n");
- goto err1;
+ return ret;
}
platform_set_drvdata(pdev, dev);
return 0;
-
-err1:
- input_unregister_device(input);
- input = NULL;
-err:
- input_free_device(input);
- kfree(dev);
- return ret;
}
static int adp5520_keys_remove(struct platform_device *pdev)
@@ -188,8 +178,6 @@ static int adp5520_keys_remove(struct platform_device *pdev)
adp5520_unregister_notifier(dev->master, &dev->notifier,
ADP5520_KP_IEN | ADP5520_KR_IEN);
- input_unregister_device(dev->input);
- kfree(dev);
return 0;
}