[PATCH 4/4] erofs-utils: fsck: avoid truncating lseek() return values

[Yifan Zhao <stopire@gmail.com>]

Check lseek() directly to avoid truncating its return value to int,
which can turn successful seeks beyond INT_MAX into extraction failures.

Fixes: b063ea316aa9 ("erofs-utils: fsck: extract chunk-based file with hole correctly")
Assisted-by: Codex:gpt-6-astra
Signed-off-by: Yifan Zhao <stopire@gmail.com>
---
 fsck/main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fsck/main.c b/fsck/main.c
index 55da9ea..e54c523 100644
--- a/fsck/main.c
+++ b/fsck/main.c
@@ -571,8 +571,7 @@ static int erofs_verify_inode_data(struct erofs_inode *inode, int outfd,
 				}
 			}
 			if (outfd >= 0) {
-				ret = lseek(outfd, map.m_llen, SEEK_CUR);
-				if (ret < 0) {
+				if (lseek(outfd, map.m_llen, SEEK_CUR) < 0) {
 					ret = -errno;
 					goto out;
 				}
-- 
2.55.0