tools/nolibc: fix fopen() errno when open() fails

When open() fails, fopen() passes its -1 on to fdopen(), which sets
errno to EBADF and so overwrites the error from open(). A missing file
is reported as EBADF instead of ENOENT, and a file without permission as
EBADF instead of EACCES.

Return NULL as soon as open() fails, leaving its errno in place.

Fixes: a009a0c6faa9 ("tools/nolibc: add fopen()")
Signed-off-by: Danish Khateeb <danishkhateeb03@gmail.com>
Link: https://patch.msgid.link/20261028200743.154151-2-danishkhateeb03@gmail.com
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>

0 files changed, 0 insertions, 0 deletions