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Date: Fri, 7 Dec 2007 16:35:14 +0800
From: Fengguang Wu <wfg@...l.ustc.edu.cn>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Jiri Kosina <jkosina@...e.cz>, linux-kernel@...r.kernel.org
Subject: [PATCH BUGFIX] hid: the `bit' in hidinput_mapping_quirks() is an
out parameter
Fix a panic, by changing
hidinput_mapping_quirks(,, unsigned long *bit,)
to
hidinput_mapping_quirks(,, unsigned long **bit,)
The `bit' in this function is an out parameter.
Cc: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Fengguang Wu <wfg@...l.ustc.edu.cn>
---
drivers/hid/hid-input-quirks.c | 36 +++++++++++++++----------------
drivers/hid/hid-input.c | 2 -
include/linux/hid.h | 2 -
3 files changed, 20 insertions(+), 20 deletions(-)
--- linux-2.6.24-rc4-mm1.orig/include/linux/hid.h
+++ linux-2.6.24-rc4-mm1/include/linux/hid.h
@@ -526,7 +526,7 @@ extern void hidinput_disconnect(struct h
int hid_set_field(struct hid_field *, unsigned, __s32);
int hid_input_report(struct hid_device *, int type, u8 *, int, int);
int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
-int hidinput_mapping_quirks(struct hid_usage *, struct input_dev *, unsigned long *, int *);
+int hidinput_mapping_quirks(struct hid_usage *, struct input_dev *, unsigned long **, int *);
void hidinput_event_quirks(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
int hidinput_apple_event(struct hid_device *, struct input_dev *, struct hid_usage *, __s32);
void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt);
--- linux-2.6.24-rc4-mm1.orig/drivers/hid/hid-input.c
+++ linux-2.6.24-rc4-mm1/drivers/hid/hid-input.c
@@ -382,7 +382,7 @@ static void hidinput_configure_usage(str
}
/* handle input mappings for quirky devices */
- ret = hidinput_mapping_quirks(usage, input, bit, &max);
+ ret = hidinput_mapping_quirks(usage, input, &bit, &max);
if (ret)
goto mapped;
--- linux-2.6.24-rc4-mm1.orig/drivers/hid/hid-input-quirks.c
+++ linux-2.6.24-rc4-mm1/drivers/hid/hid-input-quirks.c
@@ -16,16 +16,16 @@
#include <linux/input.h>
#include <linux/hid.h>
-#define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; *max = ABS_MAX; } while (0)
-#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; *max = REL_MAX; } while (0)
-#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; *max = KEY_MAX; } while (0)
-#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; *max = LED_MAX; } while (0)
+#define map_abs(c) do { usage->code = c; usage->type = EV_ABS; *bit = input->absbit; *max = ABS_MAX; } while (0)
+#define map_rel(c) do { usage->code = c; usage->type = EV_REL; *bit = input->relbit; *max = REL_MAX; } while (0)
+#define map_key(c) do { usage->code = c; usage->type = EV_KEY; *bit = input->keybit; *max = KEY_MAX; } while (0)
+#define map_led(c) do { usage->code = c; usage->type = EV_LED; *bit = input->ledbit; *max = LED_MAX; } while (0)
-#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
-#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
+#define map_abs_clear(c) do { map_abs(c); clear_bit(c, *bit); } while (0)
+#define map_key_clear(c) do { map_key(c); clear_bit(c, *bit); } while (0)
static int quirk_belkin_wkbd(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
@@ -41,7 +41,7 @@ static int quirk_belkin_wkbd(struct hid_
}
static int quirk_cherry_cymotion(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
@@ -57,7 +57,7 @@ static int quirk_cherry_cymotion(struct
}
static int quirk_logitech_ultrax_remote(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
@@ -90,7 +90,7 @@ static int quirk_logitech_ultrax_remote(
}
static int quirk_chicony_tactical_pad(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
@@ -115,7 +115,7 @@ static int quirk_chicony_tactical_pad(st
}
static int quirk_microsoft_ergonomy_kb(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
@@ -138,7 +138,7 @@ static int quirk_microsoft_ergonomy_kb(s
}
static int quirk_microsoft_presenter_8k(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
@@ -156,7 +156,7 @@ static int quirk_microsoft_presenter_8k(
}
static int quirk_petalynx_remote(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if (((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR) &&
((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER))
@@ -184,7 +184,7 @@ static int quirk_petalynx_remote(struct
}
static int quirk_logitech_wireless(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
@@ -236,7 +236,7 @@ static int quirk_logitech_wireless(struc
}
static int quirk_cherry_genius_29e(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
@@ -254,7 +254,7 @@ static int quirk_cherry_genius_29e(struc
}
static int quirk_btc_8193(struct hid_usage *usage, struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0;
@@ -307,7 +307,7 @@ static int quirk_btc_8193(struct hid_usa
static const struct hid_input_blacklist {
__u16 idVendor;
__u16 idProduct;
- int (*quirk)(struct hid_usage *, struct input_dev *, unsigned long *, int *);
+ int (*quirk)(struct hid_usage *, struct input_dev *, unsigned long **, int *);
} hid_input_blacklist[] = {
{ VENDOR_ID_BELKIN, DEVICE_ID_BELKIN_WIRELESS_KEYBOARD, quirk_belkin_wkbd },
@@ -335,7 +335,7 @@ static const struct hid_input_blacklist
int hidinput_mapping_quirks(struct hid_usage *usage,
struct input_dev *input,
- unsigned long *bit, int *max)
+ unsigned long **bit, int *max)
{
struct hid_device *device = input_get_drvdata(input);
int i = 0;
--
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