From 7557933e6b99d381c19b196901ed537b00f6d121 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 6 Jun 2016 17:10:44 +0200 Subject: lib/cpio: Make find_cpio_data()'s offset arg optional Some callers don't use it so make it optional. Signed-off-by: Borislav Petkov Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1465225850-7352-4-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar --- lib/earlycpio.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'lib/earlycpio.c') 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", -- cgit v1.2.3