[PATCHv2] input: ipaq-micro-keys: simplify allocation

From: Rosen Penev

Date: Tue Jun 09 2026 - 17:37:28 EST


Embed the keycode array in the struct to have a single allocation.

Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
v2: use regular array instead of flexible array member.
drivers/input/keyboard/ipaq-micro-keys.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/input/keyboard/ipaq-micro-keys.c b/drivers/input/keyboard/ipaq-micro-keys.c
index ca7ec054b1ce..695ef3c2081a 100644
--- a/drivers/input/keyboard/ipaq-micro-keys.c
+++ b/drivers/input/keyboard/ipaq-micro-keys.c
@@ -20,12 +20,6 @@
#include <linux/platform_device.h>
#include <linux/mfd/ipaq-micro.h>

-struct ipaq_micro_keys {
- struct ipaq_micro *micro;
- struct input_dev *input;
- u16 *codes;
-};
-
static const u16 micro_keycodes[] = {
KEY_RECORD, /* 1: Record button */
KEY_CALENDAR, /* 2: Calendar */
@@ -38,6 +32,12 @@ static const u16 micro_keycodes[] = {
KEY_DOWN, /* 9: Down */
};

+struct ipaq_micro_keys {
+ struct ipaq_micro *micro;
+ struct input_dev *input;
+ u16 codes[ARRAY_SIZE(micro_keycodes)];
+};
+
static void micro_key_receive(void *data, int len, unsigned char *msg)
{
struct ipaq_micro_keys *keys = data;
@@ -102,10 +102,7 @@ static int micro_key_probe(struct platform_device *pdev)

keys->input->keycodesize = sizeof(micro_keycodes[0]);
keys->input->keycodemax = ARRAY_SIZE(micro_keycodes);
- keys->codes = devm_kmemdup_array(&pdev->dev, micro_keycodes, keys->input->keycodemax,
- keys->input->keycodesize, GFP_KERNEL);
- if (!keys->codes)
- return -ENOMEM;
+ memcpy(keys->codes, micro_keycodes, sizeof(keys->codes));

keys->input->keycode = keys->codes;

--
2.54.0