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linux: device: unmap regions for linux device

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This unmaps the device regions which were opened during metal_uio_dev_open.
Failure to do this results in a file descriptor leak.

Signed-off-by: Lane Kolbly <lane.kolbly@ni.com>
This commit is contained in:
Lane Kolbly
2021-05-28 10:12:49 +02:00
committed by Arnaud Pouliquen
parent 31dfaa172b
commit 4faa1c9d36
1 changed files with 5 additions and 0 deletions
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lib/system/linux/device.c
+5
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@@ -266,7 +266,12 @@ static void metal_uio_dev_close(struct linux_bus *lbus,
struct linux_device *ldev)
{
(void)lbus;
unsigned int i;
for (i = 0; i < ldev->device.num_regions; i++) {
metal_unmap(ldev->device.regions[i].virt,
ldev->device.regions[i].size);
}
if (ldev->override) {
sysfs_write_attribute(ldev->override, "", 1);
ldev->override = NULL;