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scripts: modpost: fix compilation warning

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The scripts/mod/modpost.c triggers the following warning:

scripts/mod/modpost.c: In function ‘remove_dot’:
scripts/mod/modpost.c:1710:10: warning: ignoring return value of ‘strtoul’, declared with attribute warn_unused_result [-Wunused-result]

The remove_dot function that calls strtoul does not care about the
numeric value of the string that is parsed but only looks for the
end of the numeric sequence.  As such, it's equivalent to just skip
over all digits.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Michal Nazarewicz 2014-07-27 07:27:01 +09:30 committed by Rusty Russell
parent 37549e94c7
commit fcd38ed0ff
1 changed files with 4 additions and 5 deletions
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scripts/mod/modpost.c
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@ -1703,12 +1703,11 @@ static void check_sec_ref(struct module *mod, const char *modname,
static char *remove_dot(char *s)
{
char *end;
int n = strcspn(s, ".");
size_t n = strcspn(s, ".");
if (n > 0 && s[n] != 0) {
strtoul(s + n + 1, &end, 10);
if (end > s + n + 1 && (*end == '.' || *end == 0))
if (n && s[n]) {
size_t m = strspn(s + n + 1, "0123456789");
if (m && (s[n + m] == '.' || s[n + m] == 0))
s[n] = 0;
}
return s;