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9pfs: fix qemu_mknodat() to always return -1 on error on macOS host 

qemu_mknodat() is expected to behave according to its POSIX API, and
therefore should always return exactly -1 on any error, and errno
should be set for the actual error code.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <c714b5e1cae225ab7575242c45ee0fe4945eb6ad.1651228001.git.qemu_oss@crudebyte.com>
This commit is contained in:
Christian Schoenebeck 2022-04-29 12:25:29 +02:00
parent 9ea3164611
commit 063c75db2e
1 changed files with 2 additions and 1 deletions
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3
hw/9pfs/9p-util-darwin.c
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@ -124,7 +124,8 @@ int qemu_mknodat(int dirfd, const char *filename, mode_t mode, dev_t dev)
}
if (!pthread_fchdir_np) {
error_report_once("pthread_fchdir_np() not available on this version of macOS");
return -ENOTSUP;
errno = ENOTSUP;
return -1;
}
if (pthread_fchdir_np(dirfd) < 0) {
return -1;