sunrpc: fix rpc debugging

Commit baa3a2a0d24ebcf1c451bec8e5bee3d3467f4cbb ("sysctl: remove broken
sunrpc debug binary sysctls"), by removing initialization of the
ctl_name field, broke this conditional, preventing the display of
rpc_tasks that you previously got when turning on rpc debugging.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

net/sunrpc/sysctl.c

@@ -87,9 +87,8 @@ proc_dodebug(ctl_table *table, int write, struct file *file,
 			left--, s++;
 		*(unsigned int *) table->data = value;
 		/* Display the RPC tasks on writing to rpc_debug */
-		if (table->ctl_name == CTL_RPCDEBUG) {
+		if (strcmp(table->procname, "rpc_debug") == 0)
 			rpc_show_tasks();
-		}
 	} else {
 		if (!access_ok(VERIFY_WRITE, buffer, left))
 			return -EFAULT;