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Fix error handling in 'zero' function.

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This commit is contained in:
Richard Jones
2009-11-26 16:06:03 +00:00
parent 4d53df4d73
commit bba019781a
1 changed files with 7 additions and 10 deletions
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17
daemon/zero.c
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@@ -41,20 +41,17 @@ do_zero (const char *device)
memset (buf, 0, sizeof buf);
int err = 0;
int saved_errno = 0;
for (i = 0; i < 32; ++i)
if (write (fd, buf, sizeof buf) != sizeof buf) {
saved_errno = errno;
err = -1;
reply_with_perror ("write: %s", device);
close (fd);
return -1;
}
if (close (fd) && saved_errno == 0) {
saved_errno = errno;
err = -1;
if (close (fd) == -1) {
reply_with_perror ("close: %s", device);
return -1;
}
if (saved_errno)
errno = saved_errno;
return err;
return 0;
}