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check return code of asprintf

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On ubuntu (gcc 4.9.2), I get:

mount.c: In function ‘add_fsname_auto’:
mount.c:1414:3: error: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result [-Werror=unused-result]
   asprintf(&fsauto_names, "%s,%s", old, names);
   ^
cc1: all warnings being treated as errors

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Tycho Andersen
2015-04-21 10:33:54 -06:00
committed by Pavel Emelyanov
parent 2702615286
commit a052e0b60a
1 changed files with 4 additions and 1 deletions
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5
mount.c
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@@ -1411,7 +1411,10 @@ bool add_fsname_auto(const char *names)
fsauto_names = xstrdup(names); fsauto_names = xstrdup(names);
else { else {
fsauto_names = NULL; fsauto_names = NULL;
asprintf(&fsauto_names, "%s,%s", old, names); if (asprintf(&fsauto_names, "%s,%s", old, names) < 0) {
fsauto_names = old;
return false;
}
} }
xfree(old); xfree(old);