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-rw-r--r--fs/drop_caches.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index 2195c21..816f88e 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -45,7 +45,11 @@ static void drop_slab(void)
int drop_caches_sysctl_handler(ctl_table *table, int write,
void __user *buffer, size_t *length, loff_t *ppos)
{
- proc_dointvec_minmax(table, write, buffer, length, ppos);
+ int ret;
+
+ ret = proc_dointvec_minmax(table, write, buffer, length, ppos);
+ if (ret)
+ return ret;
if (write) {
if (sysctl_drop_caches & 1)
iterate_supers(drop_pagecache_sb, NULL);
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