In case of a temporary failure the ixgbe driver can return the internal
error IXGBE_ERR_RESET_FAILED to the application. Instead, return
-EAGAIN as per the public API specification.
Fixes: cddaf87a1e ("lib: fix unused values")
Cc: stable@dpdk.org
Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>