[v4,3/4] KEYS: Remove __user annotation from dns_resolver_read()
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Message ID 20200317194140.6031-4-longman@redhat.com
State New
Headers show
Series
  • KEYS: Read keys to internal buffer & then copy to userspace
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Commit Message

Waiman Long March 17, 2020, 7:41 p.m. UTC
As the keyctl_read_key() has been modified to use a temporary kernel
buffer to read out the key data instead of passing in the user-supplied
buffer directly, there is no need to use the __user annotation for
dns_resolver_read().

Signed-off-by: Waiman Long <longman@redhat.com>
---
 net/dns_resolver/dns_key.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 3e1a90669006..ad53eb31d40f 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -302,7 +302,7 @@  static void dns_resolver_describe(const struct key *key, struct seq_file *m)
  * - the key's semaphore is read-locked
  */
 static long dns_resolver_read(const struct key *key,
-			      char __user *buffer, size_t buflen)
+			      char *buffer, size_t buflen)
 {
 	int err = PTR_ERR(key->payload.data[dns_key_error]);