NTFS: Fix a stupid bug causing writes to non-initialized pages to segfault. (3aebf25b) · Commits · e / devices / android_kernel_samsung_universal8895

fs/ntfs/file.c

+9 −8

Original line number	Original line	Diff line number	Diff line
	@@ -668,10 +668,10 @@ map_buffer_cached:
	* to, we need to read it in before the write,		* to, we need to read it in before the write,
	* i.e. now.		* i.e. now.
	*/		*/
	if (!buffer_uptodate(bh) && ((bh_pos < pos &&		if (!buffer_uptodate(bh) && bh_pos < end &&
	bh_end > pos) \|\|		bh_end > pos &&
	(bh_end > end &&		(bh_pos < pos \|\|
	bh_end > end))) {		bh_end > end)) {
	/*		/*
	* If the buffer is fully or partially		* If the buffer is fully or partially
	* within the initialized size, do an		* within the initialized size, do an
	@@ -784,10 +784,11 @@ retry_remap:
	blocksize_bits);		blocksize_bits);
	cdelta = 0;		cdelta = 0;
	/*		/*
	* If the number of remaining clusters in the		* If the number of remaining clusters touched
	* @pages is smaller or equal to the number of		* by the write is smaller or equal to the
	* cached clusters, unlock the runlist as the		* number of cached clusters, unlock the
	* map cache will be used from now on.		* runlist as the map cache will be used from
			* now on.
	*/		*/
	if (likely(vcn + vcn_len >= cend)) {		if (likely(vcn + vcn_len >= cend)) {
	if (rl_write_locked) {		if (rl_write_locked) {