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path: root/drivers/gpio/gpiolib-cdev.c
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Diffstat (limited to 'drivers/gpio/gpiolib-cdev.c')
-rw-r--r--drivers/gpio/gpiolib-cdev.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c
index e39d344feb28..31fc71a612c2 100644
--- a/drivers/gpio/gpiolib-cdev.c
+++ b/drivers/gpio/gpiolib-cdev.c
@@ -572,7 +572,7 @@ struct linereq {
DECLARE_KFIFO_PTR(events, struct gpio_v2_line_event);
atomic_t seqno;
struct mutex config_mutex;
- struct line lines[];
+ struct line lines[] __counted_by(num_lines);
};
#define GPIO_V2_LINE_BIAS_FLAGS \
@@ -1656,6 +1656,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip)
lr = kzalloc(struct_size(lr, lines, ulr.num_lines), GFP_KERNEL);
if (!lr)
return -ENOMEM;
+ lr->num_lines = ulr.num_lines;
lr->gdev = gpio_device_get(gdev);
@@ -1684,7 +1685,6 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip)
lr->event_buffer_size = GPIO_V2_LINES_MAX * 16;
atomic_set(&lr->seqno, 0);
- lr->num_lines = ulr.num_lines;
/* Request each GPIO */
for (i = 0; i < ulr.num_lines; i++) {