[XS] Change in em100[main]: em100: free device list when calling em100 --list

[Name of user not set (Code Review)]

[e-mail] has uploaded this change for review. ( https://review.coreboot.org/c/em100/+/80248?usp=email )

Change subject: em100: free device list when calling em100 --list
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em100: free device list when calling em100 --list

After querying the device list by calling libusb_get_device_list, you have to
free the list with lib_usb_free_device_list to properly clean up the resources
allocated by libusb. This solves some warnings issued by libusb when calling
`em100 --list`.

Change-Id: Id1849bb69d534928016256dd01e9550ef414d330
Signed-off-by: Corvin Köhne 
---
M em100.c
1 file changed, 1 insertion(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/em100 refs/changes/48/80248/1

diff --git a/em100.c b/em100.c
index 90bf882..cfcecb9 100644
--- a/em100.c
+++ b/em100.c
@@ -539,6 +539,7 @@
    }
    if (count == 0)
    	printf("No EM100pro devices found.\n");
+	libusb_free_device_list(devs, 1);
    libusb_exit(ctx);
    return 1;
 }