Fix the following coccicheck warning:

drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c:223:14-36: WARNING: Use
correct pointer type argument for sizeof

Signed-off-by: Jason Yan <yanai...@huawei.com>
---
 drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c 
b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
index d0f06790d38f..caaf9e34f1ee 100644
--- a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
+++ b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
@@ -220,7 +220,7 @@ static int rt2880_pinmux_index(struct rt2880_priv *p)
        /* allocate our function and group mapping index buffers */
        f = p->func = devm_kcalloc(p->dev,
                                   p->func_count,
-                                  sizeof(struct rt2880_pmx_func),
+                                  sizeof(*p->func),
                                   GFP_KERNEL);
        gpio_func.groups = devm_kcalloc(p->dev, p->group_count, sizeof(int),
                                        GFP_KERNEL);
-- 
2.21.1

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