diff --git a/libusb/descriptor.c b/libusb/descriptor.c
index 74d6de5..0b0e314 100644
--- a/libusb/descriptor.c
+++ b/libusb/descriptor.c
@@ -1174,7 +1174,7 @@ int API_EXPORTED libusb_get_string_descriptor_ascii(libusb_device_handle *dev_ha
 		return LIBUSB_ERROR_IO;
 
 	if (tbuf[0] > r)
-		return LIBUSB_ERROR_IO;
+		tbuf[0] = r;
 
 	di = 0;
 	for (si = 2; si < tbuf[0]; si += 2) {
-- 
2.17.0

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<tr><td><span title='2018-12-24 11:12:52 +0200'>2018-12-24</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=e47c69f22638dc92ee962942b8e24284c8dee832'>gnu: file: Fix CVE-2018-10360.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/patches/file-CVE-2018-10360.patch: New file.
* gnu/packages/file.scm (file)[replacement]: New field.
(file/fixed): New variable.
* gnu/packages/commencement.scm (file-boot0): Use 'package/inherit' to
receive security fixes.
* gnu/local.mk (dist_patch_DATA): Register it.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2018-05-01 03:35:06 +0200'>2018-05-01</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=32c18fcb3c3cb10303aa4ef07571867e8ce3fe8d'>gnu: file: Update to 5.33.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/file.scm (file): Update to 5.33.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-01-04 21:21:04 -0500'>2018-01-04</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=247d23680a222bc5440dec7c3fe0d36ad463a121'>Merge branch 'master' into core-updates</a></td><td>Mark H Weaver</td></tr>
<tr><td><span title='2018-01-04 12:44:03 -0500'>2018-01-04</span></td><td><a href='/guix/commit/gnu/packages/file.scm?id=def8a62f627d00503e1fb84ac335cfa3d95a0438'>gnu: file: Mention libmagic.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/file.scm (file)[description]: Mention libmagic.
</span></span></td><td>Leo Famulari</td></tr>