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DM: virtio-gpio: close gpio line fd

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When vm reset,the gpio line state is busy if we don't close the fd.

Tracked-On: #3028
Signed-off-by: fuyongjie <fuyongjie@vip.qq.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
fuyongjie 2019-04-23 20:12:14 +08:00 committed by ACRN System Integration
parent 9214c84600
commit ae07844717
1 changed files with 5 additions and 0 deletions
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5
devicemodel/hw/pci/virtio/virtio_gpio.c
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@ -291,6 +291,7 @@ static void print_intr_statistics(struct gpio_irq_chip *chip);
static void record_intr_statistics(struct gpio_irq_chip *chip, uint64_t mask);
static void gpio_pio_write(struct virtio_gpio *gpio, int n, uint64_t reg);
static uint32_t gpio_pio_read(struct virtio_gpio *gpio, int n);
static void native_gpio_close_line(struct gpio_line *line);
static void
native_gpio_update_line_info(struct gpio_line *line)
@ -324,10 +325,14 @@ native_gpio_update_line_info(struct gpio_line *line)
static void
native_gpio_close_chip(struct native_gpio_chip *chip)
{
int i;
if (chip) {
memset(chip->name, 0, sizeof(chip->name));
memset(chip->label, 0, sizeof(chip->label));
memset(chip->dev_name, 0, sizeof(chip->dev_name));
for (i = 0; i < chip->ngpio; i++) {
native_gpio_close_line(&chip->lines[i]);
}
if (chip->fd > 0) {
close(chip->fd);
chip->fd = -1;