diff options
| -rw-r--r-- | miscutils/i2c_tools.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c index 7be489036..e19d851fe 100644 --- a/miscutils/i2c_tools.c +++ b/miscutils/i2c_tools.c @@ -732,8 +732,10 @@ static int read_block_data(int buf_fd, int mode, int *block) tmp = i2c_smbus_read_i2c_block_data( buf_fd, res, I2C_SMBUS_BLOCK_MAX, cblock + res); - if (tmp <= 0) + if (tmp <= 0) { + blen = tmp; goto fail; + } } if (res >= I2CDUMP_NUM_REGS) @@ -750,7 +752,7 @@ static int read_block_data(int buf_fd, int mode, int *block) return blen; fail: - bb_error_msg_and_die("block read failed"); + bb_error_msg_and_die("block read failed: %d", blen); } /* Dump all but word data. */ |