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net/sunrpc: return 0 on attempt to write to "transports"

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You can't write to this file because the permissions are 0444.  But
it sort of looked like you could do a write and it would result in
a read.  Then it looked like proc_sys_call_handler() just ignored
it.  Which is confusing.  It's more clear if the "write" just
returns zero.

Also, the "lenp" pointer is never NULL so that check can be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Dan Carpenter 2020-11-06 15:39:50 -05:00 committed by J. Bruce Fields
parent 49a3613273
commit d435c05ab0
1 changed files with 1 additions and 1 deletions
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net/sunrpc/sysctl.c
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@ -65,7 +65,7 @@ static int proc_do_xprt(struct ctl_table *table, int write,
char tmpbuf[256];
size_t len;
if ((*ppos && !write) || !*lenp) {
if (write || *ppos) {
*lenp = 0;
return 0;
}