Need check the return value of proc_put_char(), just like another have
done in __do_proc_doulongvec_minmax().
Signed-off-by: Chen Gang <gang.c...@asianux.com>
---
kernel/sysctl.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 7822cd8..ee00986 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2214,8 +2214,11 @@ 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)
+ goto free;
+ }
err = proc_put_long(&buffer, &left, val, false);
if (err)
break;
--
1.7.7.6
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