Free some malloced memory that wasn't being freed.

As mdadm is normally a short-lived program it isn't always necessary
to free memory that was allocated, as the 'exit()' call will
automatically free everything.  But it is more obviously correct if
the 'free' is there.
So this patch add a few calls to 'free'

Signed-off-by: NeilBrown <neilb@suse.de>

3 files changed, 8 insertions, 2 deletions

diff --git a/Detail.c b/Detail.c
index e41ad1b..544cfdb 100644
--- a/Detail.c
+++ b/Detail.c
@@ -541,6 +541,7 @@ This is pretty boring
 		    1, avail, avail_disks))
 		rv = 2;
 
+	free(disks);
 out:
 	close(fd);
 	return rv;
diff --git a/Manage.c b/Manage.c
index 3aa09bc..84eb3ab 100644
--- a/Manage.c
+++ b/Manage.c
@@ -140,7 +140,7 @@ static void remove_devices(int devnum, char *path)
 		strcpy(path2, path);
 		pe = path2 + strlen(path2);
 	} else
-		path = NULL;
+		path2 = path = NULL;
 	
 	for (part = 0; part < 16; part++) {
 		if (part) {
@@ -161,6 +161,7 @@ static void remove_devices(int devnum, char *path)
 				unlink(path2);
 		}
 	}
+	free(path2);
 }
 	
 
@@ -667,6 +668,7 @@ int Manage_subdevs(char *devname, int fd,
 						disc.state |= (1<<MD_DISK_SYNC);
 						break;
 					}
+				free(used);
 			}
 			if (dv->writemostly == 1)
 				disc.state |= (1 << MD_DISK_WRITEMOSTLY);
diff --git a/mdopen.c b/mdopen.c
index ed53d6f..21baf5d 100644
--- a/mdopen.c
+++ b/mdopen.c
@@ -43,7 +43,7 @@ void make_parts(char *dev, int cnt)
 	int odig = odig; /* quiet gcc -Os unitialized warning */
 	int i;
 	int nlen = strlen(dev) + 20;
-	char *name = malloc(nlen);
+	char *name;
 	int dig = isdigit(dev[strlen(dev)-1]);
 	char orig[1024];
 	char sym[1024];
@@ -52,6 +52,7 @@ void make_parts(char *dev, int cnt)
 	if (cnt==0) cnt=4;
 	if (lstat(dev, &stb)!= 0)
 		return;
+
 	if (S_ISLNK(stb.st_mode)) {
 		int len = readlink(dev, orig, sizeof(orig));
 		if (len < 0 || len > 1000)
@@ -63,6 +64,7 @@ void make_parts(char *dev, int cnt)
 		minor_num = minor(stb.st_rdev);
 	} else
 		   return;
+	name = malloc(nlen);
 	for (i=1; i <= cnt ; i++) {
 		struct stat stb2;
 		snprintf(name, nlen, "%s%s%d", dev, dig?"p":"", i);
@@ -92,6 +94,7 @@ void make_parts(char *dev, int cnt)
 		if (err == 0 && stat(name, &stb2) == 0)
 			add_dev(name, &stb2, 0, NULL);
 	}
+	free(name);
 }