All error paths before calling the driver's lseek callback return -1 and
set errno. Do the same if the callback returns an error.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
fs/fs.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/fs/fs.c b/fs/fs.c
index 2b4659cfbb76..e7b696591433 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -926,7 +926,13 @@ loff_t lseek(int fildes, loff_t offset, int whence)
goto out;
}
- return fsdrv->lseek(&f->fsdev->dev, f, pos);
+ pos = fsdrv->lseek(&f->fsdev->dev, f, pos);
+ if (pos < 0) {
+ errno = -pos;
+ return -1;
+ }
+
+ return pos;
out:
if (ret)
--
2.11.0
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