[PATCH][next] erofs: fix uninitialized variable i used in a while-loop

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

The while-loop iterates until src is non-null or i is 3, however, the
loop counter i is not intinitialied to zero, causing incorrect iteration
counts.  Fix this by initializing it to zero.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 1aa5f2e2feed ("erofs: support decompress big pcluster for lz4 backend")
Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 fs/erofs/decompressor.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index fe46a9c34923..8687ff81406b 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -154,6 +154,7 @@ static void *z_erofs_handle_inplace_io(struct z_erofs_decompress_req *rq,
 	}
 	kunmap_atomic(inpage);
 	might_sleep();
+	i = 0;
 	while (1) {
 		src = vm_map_ram(rq->in, nrpages_in, -1);
 		/* retry two more times (totally 3 times) */
-- 
2.30.2