[PATCH v2 04/11] tools/nolibc/dirent: avoid errno in readdir_r

Benjamin Berg
2025-09-19T15:36:08Z

From: Benjamin Berg <benjamin.berg@intel.com>

Using errno is not possible when NOLIBC_IGNORE_ERRNO is set. Use
sys_lseek instead of lseek as that avoids using errno.

Fixes: 665fa8dea90d ("tools/nolibc: add support for directory access")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
---
tools/include/nolibc/dirent.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/include/nolibc/dirent.h b/tools/include/nolibc/dirent.h
index 758b95c48e7a..61a122a60327 100644
--- a/tools/include/nolibc/dirent.h
+++ b/tools/include/nolibc/dirent.h
@@ -86,9 +86,9 @@ int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
* readdir() can only return one entry at a time.
* Make sure the non-returned ones are not skipped.
*/
- ret = lseek(fd, ldir->d_off, SEEK_SET);
- if (ret == -1)
- return errno;
+ ret = sys_lseek(fd, ldir->d_off, SEEK_SET);
+ if (ret < 0)
+ return -ret;

entry->d_ino = ldir->d_ino;
/* the destination should always be big enough */
--
2.51.0