[Bug 2060214] [NEW] mtd-utils 1:2.1.6-1build1 FTBFS

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You have been subscribed to a public bug by Sudip Mukherjee (sudipmuk):

mtd-utils 1:2.1.6-1build1 fails to build from source due to one missing
test case:

```
[ RUN      ] test_mtd_read
libmtd: error!: cannot read 28 bytes from mtd0 (eraseblock 224, offset 43)
        error 9 (Bad file descriptor)
[  ERROR   ] --- 0xffffffffffffffff != 0
[   LINE   ] --- tests/unittests/libmtd_test.c:259: error: Failure!
[  FAILED  ] test_mtd_read
```

The test function:

```
static void test_mtd_read(void **state)
{
 int mock_fd = 4;
 int eb = 0xE0;
 int offs = 43;
 int len = 28;
 off_t seek;
 char buf[28];
 struct mtd_dev_info mtd;
 memset(&mtd, 0, sizeof(mtd));
 mtd.bb_allowed = 1;
 mtd.eb_cnt = 1024;
 mtd.eb_size = 128;
 seek = (off_t)eb * mtd.eb_size + offs;
 expect_lseek(seek, SEEK_SET, seek);
 expect_read(len, len);
 int r = mtd_read(&mtd, mock_fd, eb, offs, &buf, len);
 assert_int_equal(r, 0);  // <--- fails here

 (void) state;
}
```

The failure is in `mtd_read`:

```
  ret = read(fd, buf + rd, len - rd);
```

The failure is reproducible (locally).

Full log: https://launchpadlibrarian.net/722970004/buildlog_ubuntu-
noble-amd64.mtd-utils_1%3A2.1.6-1build1_BUILDING.txt.gz

** Affects: mtd-utils (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: update-excuse
-- 
mtd-utils 1:2.1.6-1build1 FTBFS
https://bugs.launchpad.net/bugs/2060214
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