5ed6989d8
Bartosz Golaszewski
2015-11-01
Subject
i2cdump: display the numeric value for block read ioctl() errors
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Commit Diff GitHub →
miscutils/i2c_tools.c+4 -2
| @@ -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. */ | |