From: Karel Zak <kzak@redhat.com>
Date: Tue, 11 Jul 2017 10:17:40 +0000 (+0200)
Subject: libblkid: don't check for size on UBI (char dev)
X-Git-Tag: v2.30.2~25
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=ff70a9c216fe63a2bf318079b3d207c16aa9b575;p=thirdparty%2Futil-linux.git

libblkid: don't check for size on UBI (char dev)

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libblkid/src/probe.c b/libblkid/src/probe.c
index 4ccffd8f67..aa663cf596 100644
--- a/libblkid/src/probe.c
+++ b/libblkid/src/probe.c
@@ -626,7 +626,7 @@ unsigned char *blkid_probe_get_buffer(blkid_probe pr, uint64_t off, uint64_t len
 		return NULL;
 	}
 
-	if (len == 0 || pr->off + pr->size < real_off + len) {
+	if (len == 0 || (!S_ISCHR(pr->mode) && pr->off + pr->size < real_off + len)) {
 		DBG(BUFFER, ul_debug("\t  ignore: request out of probing area"));
 		errno = 0;
 		return NULL;