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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-04-20 22:33:08 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-04-20 23:06:49 -0700 |
| commit | 01111fcd42b050bdb7113a7c2c0aed2eaef67b53 (patch) | |
| tree | f6ecbee8e3962c8ff7c07c3f3997658fe5038707 /drivers/input | |
| parent | 0508c19a6fddd1ba5495004370e4fc2fd4a7d33a (diff) | |
| download | talos-op-linux-01111fcd42b050bdb7113a7c2c0aed2eaef67b53.tar.gz talos-op-linux-01111fcd42b050bdb7113a7c2c0aed2eaef67b53.zip | |
Input: matrix-keypad - allocate keycodes with keypad structure
Instead of allocating and managing keymap separately from the keypad
structure stick it at the end as a variable-length array.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/keyboard/matrix_keypad.c | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index 8714d680e2ed..a4ff08caa44b 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -27,7 +27,6 @@ struct matrix_keypad { const struct matrix_keypad_platform_data *pdata; struct input_dev *input_dev; - unsigned short *keycodes; unsigned int row_shift; DECLARE_BITMAP(disabled_gpios, MATRIX_MAX_ROWS); @@ -38,6 +37,8 @@ struct matrix_keypad { bool scan_pending; bool stopped; bool gpio_all_disabled; + + unsigned short keycodes[]; }; /* @@ -381,8 +382,8 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) const struct matrix_keymap_data *keymap_data; struct matrix_keypad *keypad; struct input_dev *input_dev; - unsigned short *keycodes; unsigned int row_shift; + size_t keymap_size; int err; pdata = pdev->dev.platform_data; @@ -398,20 +399,18 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) } row_shift = get_count_order(pdata->num_col_gpios); - - keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL); - keycodes = kzalloc((pdata->num_row_gpios << row_shift) * - sizeof(*keycodes), - GFP_KERNEL); + keymap_size = (pdata->num_row_gpios << row_shift) * + sizeof(keypad->keycodes[0]); + keypad = kzalloc(sizeof(struct matrix_keypad) + keymap_size, + GFP_KERNEL); input_dev = input_allocate_device(); - if (!keypad || !keycodes || !input_dev) { + if (!keypad || !input_dev) { err = -ENOMEM; goto err_free_mem; } keypad->input_dev = input_dev; keypad->pdata = pdata; - keypad->keycodes = keycodes; keypad->row_shift = row_shift; keypad->stopped = true; INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan); @@ -426,8 +425,8 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_dev->open = matrix_keypad_start; input_dev->close = matrix_keypad_stop; - input_dev->keycode = keycodes; - input_dev->keycodesize = sizeof(*keycodes); + input_dev->keycode = keypad->keycodes; + input_dev->keycodesize = sizeof(keypad->keycodes[0]); input_dev->keycodemax = pdata->num_row_gpios << row_shift; matrix_keypad_build_keymap(keymap_data, row_shift, @@ -451,7 +450,6 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) err_free_mem: input_free_device(input_dev); - kfree(keycodes); kfree(keypad); return err; } @@ -479,7 +477,6 @@ static int __devexit matrix_keypad_remove(struct platform_device *pdev) input_unregister_device(keypad->input_dev); platform_set_drvdata(pdev, NULL); - kfree(keypad->keycodes); kfree(keypad); return 0; |
