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Add __counted_by for extra runtime analysis. Signed-off-by: Rosen Penev --- drivers/gpio/gpio-htc-egpio.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/gpio/gpio-htc-egpio.c b/drivers/gpio/gpio-htc-egpio.c index 72935d6dbebf..d15423c718d0 100644 --- a/drivers/gpio/gpio-htc-egpio.c +++ b/drivers/gpio/gpio-htc-egpio.c @@ -46,8 +46,8 @@ struct egpio_info { uint chained_irq; =20 /* egpio info */ - struct egpio_chip *chip; int nchips; + struct egpio_chip chip[] __counted_by(nchips); }; =20 static inline void egpio_writew(u16 value, struct egpio_info *ei, int reg) @@ -270,10 +270,12 @@ static int __init egpio_probe(struct platform_device = *pdev) int i; =20 /* Initialize ei data structure. */ - ei =3D devm_kzalloc(&pdev->dev, sizeof(*ei), GFP_KERNEL); + ei =3D devm_kzalloc(&pdev->dev, struct_size(ei, chip, pdata->num_chips), = GFP_KERNEL); if (!ei) return -ENOMEM; =20 + ei->nchips =3D pdata->num_chips; + spin_lock_init(&ei->lock); =20 /* Find chained irq */ @@ -302,13 +304,6 @@ static int __init egpio_probe(struct platform_device *= pdev) =20 platform_set_drvdata(pdev, ei); =20 - ei->nchips =3D pdata->num_chips; - ei->chip =3D devm_kcalloc(&pdev->dev, - ei->nchips, sizeof(struct egpio_chip), - GFP_KERNEL); - if (!ei->chip) - return -ENOMEM; - for (i =3D 0; i < ei->nchips; i++) { ei->chip[i].reg_start =3D pdata->chip[i].reg_start; ei->chip[i].cached_values =3D pdata->chip[i].initial_values; --=20 2.53.0