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

 id='cgit'><table id='header'>
<tr>
<td class='logo' rowspan='2'><a href='/'><img src='https://git.koszko.org/cgit-static/cgit.png' alt='cgit logo'/></a></td>
<td class='main'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='d7942ac12ad51615cd43d3debb8b561a503e8fc0'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>refs</a><a class='active' href='/guix/log/gnu/packages/patches/sdl-pango-blit_overflow.patch'>log</a><a href='/guix/tree/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>tree</a><a href='/guix/commit/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>commit</a><a href='/guix/diff/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/patches/sdl-pango-blit_overflow.patch'>
<input type='hidden' name='id' value='d7942ac12ad51615cd43d3debb8b561a503e8fc0'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>root</a>/<a href='/guix/log/gnu?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>gnu</a>/<a href='/guix/log/gnu/packages?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>patches</a>/<a href='/guix/log/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0'>sdl-pango-blit_overflow.patch</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=d7942ac12ad51615cd43d3debb8b561a503e8fc0&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-02-02 14:20:28 +0100'>2020-02-02</span></td><td><a href='/guix/commit/gnu/packages/patches/sdl-pango-blit_overflow.patch?id=f389c65dbbc4ed1802707aba709bef01bd315895'>gnu: Add sdl-pango.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sdl.scm (sdl-pango): New variable.
* gnu/packages/patches/sdl-pango-api_additions.patch: New file.
* gnu/packages/patches/sdl-pango-blit_overflow.patch: New file.
* gnu/packages/patches/sdl-pango-fillrect_crash.patch: New file.
* gnu/packages/patches/sdl-pango-fix-explicit-SDLPango_CopyFTBitmapToSurface.patch:
New file.
* gnu/packages/patches/sdl-pango-matrix_declarations.patch: New file.
* gnu/packages/patches/sdl-pango-sans-serif.patch: New file.
* gnu/local.mk (sdl-pango): Reference patches.

add
</span></span></td><td>Nicolas Goaziou</td></tr>