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Check snprintf() return value for errors. Make microblaze_cpu_get_desc() directly return snprintf() error code if ret < 0. Otherwise, if the return value is greater than or equal to size, the resulting string is truncated, so return -ENOSPC. Fixes: 816226d27e ("cpu: add CPU driver for microblaze") Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220829170205.1274484-2-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>