[dm-devel] [PATCH] Don't add 'p' delimiter when you shouldn't

[Phillip Susi]

The 'p' delimiter is supposed to be added when the base disk name
ends in a digit.  This decision was based on the name given on the
command line, not the canonical device name, so giving /dev/dm-0
instead of /dev/mapper/foo triggered the digit test and added the
'p'.  Changed test to use the canonical name rather than the given
name.

Index: b/kpartx/kpartx.c
===================================================================
--- a/kpartx/kpartx.c
+++ b/kpartx/kpartx.c
@@ -310,12 +310,6 @@
 		device = loopdev;
 	}
 
-	if (delim == NULL) {
-		delim = malloc(DELIM_SIZE);
-		memset(delim, 0, DELIM_SIZE);
-		set_delimiter(device, delim);
-	}
-
 	off = find_devname_offset(device);
 
 	if (!loopdev) {
@@ -331,6 +325,12 @@
 	if (!mapname)
 		mapname = device + off;
 
+	if (delim == NULL) {
+		delim = malloc(DELIM_SIZE);
+		memset(delim, 0, DELIM_SIZE);
+		set_delimiter(mapname, delim);
+	}
+
 	fd = open(device, O_RDONLY);
 
 	if (fd == -1) {

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