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(hid_joypad.c) Prevent null pointer dereferences

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This commit is contained in:
twinaphex 2016-11-30 05:12:28 +01:00
parent 7197be5a0d
commit ce2fbbdbe2
1 changed files with 18 additions and 7 deletions
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13
input/drivers_joypad/hid_joypad.c
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@ -18,7 +18,7 @@
#include "../input_hid_driver.h"
#include "../input_driver.h"
static const hid_driver_t *generic_hid;
static const hid_driver_t *generic_hid = NULL;
static bool hid_joypad_init(void *data)
{
@ -33,7 +33,9 @@ static bool hid_joypad_init(void *data)
static bool hid_joypad_query_pad(unsigned pad)
{
if (generic_hid && generic_hid->query_pad)
return generic_hid->query_pad((void*)hid_driver_get_data(), pad);
return false;
}
static void hid_joypad_free(void)
@ -49,28 +51,37 @@ static void hid_joypad_free(void)
static bool hid_joypad_button(unsigned port, uint16_t joykey)
{
if (generic_hid && generic_hid->button)
return generic_hid->button((void*)hid_driver_get_data(), port, joykey);
return false;
}
static uint64_t hid_joypad_get_buttons(unsigned port)
{
if (generic_hid && generic_hid->get_buttons)
return generic_hid->get_buttons((void*)hid_driver_get_data(), port);
return 0;
}
static int16_t hid_joypad_axis(unsigned port, uint32_t joyaxis)
{
if (generic_hid && generic_hid->axis)
return generic_hid->axis((void*)hid_driver_get_data(), port, joyaxis);
return 0;
}
static void hid_joypad_poll(void)
{
if (generic_hid && generic_hid->poll)
generic_hid->poll((void*)hid_driver_get_data());
}
static bool hid_joypad_rumble(unsigned pad,
enum retro_rumble_effect effect, uint16_t strength)
{
if (generic_hid && generic_hid->set_rumble)
return generic_hid->set_rumble((void*)hid_driver_get_data(), pad, effect, strength);
return false;
}
static const char *hid_joypad_name(unsigned pad)