[PATCH] lib: sparse: Fix error checking for write_sparse_chunk_raw

[Sean Anderson]

The return value of write_sparse_chunk_raw is unsigned, so the existing
check has no effect. Use IS_ERR_VALUE to detect error instead, which is
what write_sparse_chunk_raw does itself.

Fixes: 62649165cb0 ("lib: sparse: Make CHUNK_TYPE_RAW buffer aligned")
Reported-by: Dan Carpenter <dan.carpenter at linaro.org>
Link: https://lore.kernel.org/u-boot/1b323ec3-59b0-490b-a2f0-fd961dafcf49@moroto.mountain/
Signed-off-by: Sean Anderson <sean.anderson at seco.com>
---

 lib/image-sparse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/image-sparse.c b/lib/image-sparse.c
index f8289064692..09225692e9b 100644
--- a/lib/image-sparse.c
+++ b/lib/image-sparse.c
@@ -211,7 +211,7 @@ int write_sparse_image(struct sparse_storage *info,
 
 			blks = write_sparse_chunk_raw(info, blk, blkcnt,
 						      data, response);
-			if (blks < 0)
+			if (IS_ERR_VALUE(blks))
 				return -1;
 
 			blk += blks;
-- 
2.35.1.1320.gc452695387.dirty