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USB: serial: ti_usb_3410_5052: fix control-message error handling
authorJohan Hovold <johan@kernel.org>
Thu, 12 Jan 2017 13:56:23 +0000 (14:56 +0100)
committerJohan Hovold <johan@kernel.org>
Mon, 16 Jan 2017 15:38:57 +0000 (16:38 +0100)
commit39712e8bfa8d3aa6ce1e60fc9d62c9b076c17a30
tree5a09d637d3ede98aa8c71bab23fa974e7dfb8ddctree | snapshot
parent1eac5c244f705182d1552a53e2f74e2775ed95d6commit | diff
USB: serial: ti_usb_3410_5052: fix control-message error handling

Make sure to detect and return an error on zero-length control-message
transfers when reading from the device.

This addresses a potential failure to detect an empty transmit buffer
during close.

Also remove a redundant check for short transfer when sending a command.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/ti_usb_3410_5052.c diff | blob | history
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