From: Cyril Roelandt <tipecaml@gmail.com>
Date: Tue, 12 Feb 2013 04:01:53 +0000 (+0100)
Subject: xen: remove redundant NULL check before unregister_and_remove_pcpu().
X-Git-Tag: firefly_0821_release~3680^2~1132^2~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4f8c85272c5e7ea1f2fe15d866835bc6f8fc996f;p=firefly-linux-kernel-4.4.55.git

xen: remove redundant NULL check before unregister_and_remove_pcpu().

unregister_and_remove_pcpu on a NULL pointer is a no-op, so the NULL check in
sync_pcpu can be removed.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---

diff --git a/drivers/xen/pcpu.c b/drivers/xen/pcpu.c
index 067fcfa1723e..5a27a4599a4a 100644
--- a/drivers/xen/pcpu.c
+++ b/drivers/xen/pcpu.c
@@ -278,8 +278,7 @@ static int sync_pcpu(uint32_t cpu, uint32_t *max_cpu)
 	 * Only those at cpu present map has its sys interface.
 	 */
 	if (info->flags & XEN_PCPU_FLAGS_INVALID) {
-		if (pcpu)
-			unregister_and_remove_pcpu(pcpu);
+		unregister_and_remove_pcpu(pcpu);
 		return 0;
 	}