USB: check serial-number string after device reset
This patch (as1048) extends the descriptor checking after a device is
reset. Now the SerialNumber string descriptor is compared to its old
value, in addition to the device and configuration descriptors.
As a consequence, the kmalloc() call in usb_string() is now on the
error-handling pathway for usb-storage. Hence its allocation type is
changed to GFO_NOIO.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index c311f67..a3695b5 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -784,7 +784,7 @@
if (size <= 0 || !buf || !index)
return -EINVAL;
buf[0] = 0;
- tbuf = kmalloc(256, GFP_KERNEL);
+ tbuf = kmalloc(256, GFP_NOIO);
if (!tbuf)
return -ENOMEM;