e2fsprogs: exit from preenhalt if IO errors were encountered

Index: e2fsprogs/e2fsck/e2fsck.h
===================================================================
@@ -174,6 +174,7 @@ struct resource_track {
 #define E2F_FLAG_RESTARTED	0x0200 /* E2fsck has been restarted */
 #define E2F_FLAG_RESIZE_INODE	0x0400 /* Request to recreate resize inode */
 #define E2F_FLAG_GOT_DEVSIZE	0x0800 /* Device size has been fetched */
+#define E2F_FLAG_EXITING	0x1000 /* E2fsck exiting due to errors */
 
 /*
  * Defines for indicating the e2fsck pass number

Index: e2fsprogs/e2fsck/ehandler.c
===================================================================
@@ -33,7 +33,8 @@ static errcode_t e2fsck_handle_read_erro
 	e2fsck_t ctx;
 
 	ctx = (e2fsck_t) fs->priv_data;
-
+	if (ctx->flags & E2F_FLAG_EXITING)
+		return 0;
 	/*
 	 * If more than one block was read, try reading each block
 	 * separately.  We could use the actual bytes read to figure

@@ -79,6 +80,8 @@ static errcode_t e2fsck_handle_write_err
 	e2fsck_t ctx;
 
 	ctx = (e2fsck_t) fs->priv_data;
+	if (ctx->flags & E2F_FLAG_EXITING)
+		return 0;
 
 	/*
 	 * If more than one block was written, try writing each block

Index: e2fsprogs/e2fsck/util.c
===================================================================
@@ -257,6 +257,7 @@ void preenhalt(e2fsck_t ctx)
 	fprintf(stderr, _("\n\n%s: UNEXPECTED INCONSISTENCY; "
 		"RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n"),
 	       ctx->device_name);
+	ctx->flags |= E2F_FLAG_EXITING;
 	if (fs != NULL) {
 		fs->super->s_state |= EXT2_ERROR_FS;
 		ext2fs_mark_super_dirty(fs);