VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Andreas Gruenbacher <agruenba@redhat.com> 2020-07-06 10:49:27 -0700 committer: Darrick J. Wong <darrick.wong@oracle.com> 2020-07-06 10:49:27 -0700 commit: 856473cd5d17dbbf3055710857c67a4af6d9fcc0 parent: dcb7fd82c75ee2d6e6f9d8cc71c52519ed52e258
Commit Summary:
iomap: Make sure iomap_end is called after iomap_begin
Diffstat:
1 file changed, 9 insertions, 4 deletions
diff --git a/fs/iomap/apply.c b/fs/iomap/apply.c
index 76925b40b5fd..26ab6563181f 100644
--- a/fs/iomap/apply.c
+++ b/fs/iomap/apply.c
@@ -46,10 +46,14 @@ iomap_apply(struct inode *inode, loff_t pos, loff_t length, unsigned flags,
 	ret = ops->iomap_begin(inode, pos, length, flags, &iomap, &srcmap);
 	if (ret)
 		return ret;
-	if (WARN_ON(iomap.offset > pos))
-		return -EIO;
-	if (WARN_ON(iomap.length == 0))
-		return -EIO;
+	if (WARN_ON(iomap.offset > pos)) {
+		written = -EIO;
+		goto out;
+	}
+	if (WARN_ON(iomap.length == 0)) {
+		written = -EIO;
+		goto out;
+	}
 
 	trace_iomap_apply_dstmap(inode, &iomap);
 	if (srcmap.type != IOMAP_HOLE)
@@ -80,6 +84,7 @@ iomap_apply(struct inode *inode, loff_t pos, loff_t length, unsigned flags,
 	written = actor(inode, pos, length, data, &iomap,
 			srcmap.type != IOMAP_HOLE ? &srcmap : &iomap);
 
+out:
 	/*
 	 * Now the data has been copied, commit the range we've copied.  This
 	 * should not fail unless the filesystem has had a fatal error.