git: 0dfbdd9fc269 - main - linux(4): make getcwd(2) return ERANGE instead of ENOMEM

[Edward Tomasz Napierala]

The branch main has been updated by trasz:

URL: https://cgit.FreeBSD.org/src/commit/?id=0dfbdd9fc269f0438ffcc31632d35234a90584ad

commit 0dfbdd9fc269f0438ffcc31632d35234a90584ad
Author:     Edward Tomasz Napierala <trasz at FreeBSD.org>
AuthorDate: 2021-03-12 15:31:37 +0000
Commit:     Edward Tomasz Napierala <trasz at FreeBSD.org>
CommitDate: 2021-03-12 15:31:45 +0000

    linux(4): make getcwd(2) return ERANGE instead of ENOMEM
    
    For native FreeBSD binaries, the return value from __getcwd(2)
    doesn't really matter, as the libc wrapper takes over and returns
    the proper errno.
    
    PR:             kern/254120
    Reported By:    Alex S <iwtcex at gmail.com>
    Reviewed By:    kib
    Sponsored By:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D29217
---
 sys/compat/linux/linux_getcwd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/compat/linux/linux_getcwd.c b/sys/compat/linux/linux_getcwd.c
index c39e69c4e707..4917641be5e5 100644
--- a/sys/compat/linux/linux_getcwd.c
+++ b/sys/compat/linux/linux_getcwd.c
@@ -74,6 +74,8 @@ linux_getcwd(struct thread *td, struct linux_getcwd_args *uap)
 
 	buf = malloc(buflen, M_TEMP, M_WAITOK);
 	error = vn_getcwd(buf, &retbuf, &buflen);
+	if (error == ENOMEM)
+		error = ERANGE;
 	if (error == 0) {
 		error = copyout(retbuf, uap->buf, buflen);
 		if (error == 0)