7ca5c51cc
Bartosz Golaszewski
2015-05-11
Subject
i2c-tools: only try /dev/i2c/* if opening /dev/i2c-* fails with ENOENT
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miscutils/i2c_tools.c+6 -2
| @@ -379,8 +379,12 @@ static int i2c_dev_open(int i2cbus) | |
| sprintf(filename, "/dev/i2c-%d", i2cbus); | |
| fd = open(filename, O_RDWR); | |
| if (fd < 0) { | |
| - | filename[8] = '/'; /* change to "/dev/i2c/%d" */ |
| - | fd = xopen(filename, O_RDWR); |
| + | if (errno == ENOENT) { |
| + | filename[8] = '/'; /* change to "/dev/i2c/%d" */ |
| + | fd = xopen(filename, O_RDWR); |
| + | } else { |
| + | bb_perror_msg_and_die("can't open '%s'", filename); |
| + | } |
| } | |
| return fd; | |