X-Git-Url: https://yaffs.net/gitweb/?a=blobdiff_plain;f=direct%2Fyaffsfs.c;h=7ee486a8d0d95cb2afa2dcd2eb69dd368db441de;hb=54721f22512e7c859c4c4a4ae7e5374ecf7fb570;hp=2917a5d817b53d75a6772c0ba04311a495fe4ff2;hpb=f579840dc5fa33617b3c99bf184024373941066a;p=yaffs2.git

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index 2917a5d..7ee486a 100644
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -501,6 +501,9 @@ static struct yaffs_dev *yaffsfs_FindDevice(const YCHAR *path,
 		thisMatchLength = 0;
 		matching = 1;
 
+		if(!p)
+			continue;
+
 		while (matching && *p && *leftOver) {
 			/* Skip over any /s */
 			while (yaffsfs_IsPathDivider(*p))
@@ -2658,6 +2661,67 @@ int yaffs_unmount(const YCHAR *path)
 	return yaffs_unmount2(path, 0);
 }
 
+int yaffs_format(const YCHAR *path,
+		int unmount_flag,
+		int force_unmount_flag,
+		int remount_flag)
+{
+	int retVal = 0;
+	struct yaffs_dev *dev = NULL;
+	int result;
+
+	if (!path) {
+		yaffsfs_SetError(-EFAULT);
+		return -1;
+	}
+
+	if (yaffsfs_CheckPath(path) < 0) {
+		yaffsfs_SetError(-ENAMETOOLONG);
+		return -1;
+	}
+
+	yaffsfs_Lock();
+	dev = yaffsfs_FindMountPoint(path);
+
+	if (dev) {
+		int was_mounted = dev->is_mounted;
+
+		if (dev->is_mounted && unmount_flag) {
+			int inUse;
+			yaffs_flush_whole_cache(dev);
+			yaffs_checkpoint_save(dev);
+			inUse = yaffsfs_IsDevBusy(dev);
+			if (!inUse || force_unmount_flag) {
+				if (inUse)
+					yaffsfs_BreakDeviceHandles(dev);
+				yaffs_deinitialise(dev);
+			}
+		}
+
+		if(dev->is_mounted) {
+				yaffsfs_SetError(-EBUSY);
+				retVal = -1;
+		} else {
+			yaffs_format_dev(dev);
+			if(was_mounted && remount_flag) {
+				result = yaffs_guts_initialise(dev);
+				if (result == YAFFS_FAIL) {
+					yaffsfs_SetError(-ENOMEM);
+					retVal = -1;
+				}
+			}
+		}
+	} else {
+		yaffsfs_SetError(-ENODEV);
+		retVal = -1;
+	}
+
+	yaffsfs_Unlock();
+	return retVal;
+
+}
+
+
 Y_LOFF_T yaffs_freespace(const YCHAR *path)
 {
 	Y_LOFF_T retVal = -1;