When an USB hardware does not provide a valid LANGID, fall back to value
zero which is still a reasonable default for most devices.
Signed-off-by: Daniel Mack <daniel@xxxxxxxx>
---
drivers/usb/core/message.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 49e7f56..37b6564 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -804,18 +804,16 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size)
dev_err(&dev->dev,
"string descriptor 0 read error: %d\n",
err);
- goto errout;
} else if (err < 4) {
dev_err(&dev->dev, "string descriptor 0 too short\n");
- err = -EINVAL;
- goto errout;
} else {
- dev->have_langid = 1;
dev->string_langid = tbuf[2] | (tbuf[3] << 8);
/* always use the first langid listed */
dev_dbg(&dev->dev, "default language 0x%04x\n",
dev->string_langid);
}
+
+ dev->have_langid = 1;
}
err = usb_string_sub(dev, dev->string_langid, index, tbuf);
--
1.6.2
--
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