[REPOST PATCH] kexec: Remove the unnecessary conditional judgement to simplify the code logic

[Minfei Huang]

Transforming PFN(Page Frame Number) to struct page is never failure, so
we can simplify the code logic to do the image->control_page assignment
directly in the loop, and remove the unnecessary conditional judgement.

Signed-off-by: Minfei Huang <mnfhuang at gmail.com>
Acked-by: Dave Young <dyoung at redhat.com>
Acked-by: Vivek Goyal <vgoyal at redhat.com>
---
 kernel/kexec.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 6f1ed75..cf82474 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -807,11 +807,10 @@ static struct page *kimage_alloc_crash_control_pages(struct kimage *image,
 		/* If I don't overlap any segments I have found my hole! */
 		if (i == image->nr_segments) {
 			pages = pfn_to_page(hole_start >> PAGE_SHIFT);
+			image->control_page = hole_end;
 			break;
 		}
 	}
-	if (pages)
-		image->control_page = hole_end;
 
 	return pages;
 }
-- 
2.4.0