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d794155ba6
In r82xx_read, there is a 1-byte I2C write followed by the I2C read. If this I2C write fails, r82xx_read correctly bails out but may return 0. Callers that check whether (rc < 0) will assume that the buffer was written when it has not been, e.g. in r82xx_set_tv_standard where priv->fil_cal_code = data[4] & 0x0f; consumes a garbage value for data[4]. This change resolves that issue by copying the error path from r82xx_write.
rtl-sdr turns your Realtek RTL2832 based DVB dongle into a SDR receiver ====================================================================== For more information see: https://osmocom.org/projects/rtl-sdr/wiki