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kernel/sysctl.c: check return value after call proc_put_char() in __do_proc_doulongvec_minmax()

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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>
This commit is contained in:
Chen Gang 2013-11-12 15:11:21 -08:00 committed by Linus Torvalds
parent 1310a5a99d
commit 7833819d2e
1 changed files with 4 additions and 1 deletions
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5
kernel/sysctl.c
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@ -2222,8 +2222,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
*i = val;
} else {
val = convdiv * (*i) / convmul;
if (!first)
if (!first) {
err = proc_put_char(&buffer, &left, '\t');
if (err)
break;
}
err = proc_put_long(&buffer, &left, val, false);
if (err)
break;