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