kernel/sysctl.c: check return value after call proc_put_char() in __do_proc_doulongvec_minmax()
Need to check the return value of proc_put_char(), as was done in __do_proc_doulongvec_minmax(). Signed-off-by: Chen Gang <gang.chen@asianux.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -2222,8 +2222,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
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*i = val;
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*i = val;
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} else {
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} else {
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val = convdiv * (*i) / convmul;
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val = convdiv * (*i) / convmul;
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if (!first)
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if (!first) {
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err = proc_put_char(&buffer, &left, '\t');
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err = proc_put_char(&buffer, &left, '\t');
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if (err)
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break;
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}
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err = proc_put_long(&buffer, &left, val, false);
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err = proc_put_long(&buffer, &left, val, false);
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if (err)
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if (err)
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break;
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break;
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