linux-kernel - [PATCH 3/9] lib/cpio: Make find_cpio

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Date:	Mon,  6 Jun 2016 17:10:44 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	X86 ML <x86@...nel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/9] lib/cpio: Make find_cpio_data()'s offset arg optional

From: Borislav Petkov <bp@...e.de>

Some callers don't use it so make it optional.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 lib/earlycpio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/earlycpio.c b/lib/earlycpio.c
index 3eb3e4722b8e..db283ba4d2c1 100644
--- a/lib/earlycpio.c
+++ b/lib/earlycpio.c
@@ -125,7 +125,10 @@ struct cpio_data find_cpio_data(const char *path, void *data,
 		if ((ch[C_MODE] & 0170000) == 0100000 &&
 		    ch[C_NAMESIZE] >= mypathsize &&
 		    !memcmp(p, path, mypathsize)) {
-			*nextoff = (long)nptr - (long)data;
+
+			if (nextoff)
+				*nextoff = (long)nptr - (long)data;
+
 			if (ch[C_NAMESIZE] - mypathsize >= MAX_CPIO_FILE_NAME) {
 				pr_warn(
 				"File %s exceeding MAX_CPIO_FILE_NAME [%d]\n",
-- 
2.7.3