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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-20 20:42:41 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-20 20:42:41 +0300
commit5c40cd7db64a2949f268d7467b9be551a565d14b (patch)
treefb8a67f6edcb0c9922c256a598d675c1c04051d6 /drivers/hid/hid-mcp2200.c
parent8bde384a2090759efc9b92f34300887d418a2a3a (diff)
parent25bf10be219d37d2fb221c93816a913f5f735530 (diff)
downloadlinux-rolling-stable.tar.xz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid/hid-mcp2200.c')
-rw-r--r--drivers/hid/hid-mcp2200.c23
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/hid/hid-mcp2200.c b/drivers/hid/hid-mcp2200.c
index bf57f7f6caa0..e6ea0a2140eb 100644
--- a/drivers/hid/hid-mcp2200.c
+++ b/drivers/hid/hid-mcp2200.c
@@ -127,8 +127,8 @@ static int mcp_cmd_read_all(struct mcp2200 *mcp)
return mcp->status;
}
-static void mcp_set_multiple(struct gpio_chip *gc, unsigned long *mask,
- unsigned long *bits)
+static int mcp_set_multiple(struct gpio_chip *gc, unsigned long *mask,
+ unsigned long *bits)
{
struct mcp2200 *mcp = gpiochip_get_data(gc);
u8 value;
@@ -150,16 +150,20 @@ static void mcp_set_multiple(struct gpio_chip *gc, unsigned long *mask,
if (status == sizeof(struct mcp_set_clear_outputs))
mcp->gpio_val = value;
+ else
+ status = -EIO;
mutex_unlock(&mcp->lock);
+
+ return status;
}
-static void mcp_set(struct gpio_chip *gc, unsigned int gpio_nr, int value)
+static int mcp_set(struct gpio_chip *gc, unsigned int gpio_nr, int value)
{
unsigned long mask = 1 << gpio_nr;
unsigned long bmap_value = value << gpio_nr;
- mcp_set_multiple(gc, &mask, &bmap_value);
+ return mcp_set_multiple(gc, &mask, &bmap_value);
}
static int mcp_get_multiple(struct gpio_chip *gc, unsigned long *mask,
@@ -263,9 +267,10 @@ static int mcp_direction_output(struct gpio_chip *gc, unsigned int gpio_nr,
bmap_value = value << gpio_nr;
ret = mcp_set_direction(gc, gpio_nr, MCP2200_DIR_OUT);
- if (!ret)
- mcp_set_multiple(gc, &mask, &bmap_value);
- return ret;
+ if (ret)
+ return ret;
+
+ return mcp_set_multiple(gc, &mask, &bmap_value);
}
static const struct gpio_chip template_chip = {
@@ -274,8 +279,8 @@ static const struct gpio_chip template_chip = {
.get_direction = mcp_get_direction,
.direction_input = mcp_direction_input,
.direction_output = mcp_direction_output,
- .set = mcp_set,
- .set_multiple = mcp_set_multiple,
+ .set_rv = mcp_set,
+ .set_multiple_rv = mcp_set_multiple,
.get = mcp_get,
.get_multiple = mcp_get_multiple,
.base = -1,