[v4,3/5] osdep: Make qemu_madvise() return ENOSYS on unsupported OSes

Commit Message

Michal Privoznik June 5, 2024, 10:44 a.m. UTC

Not every OS is capable of madvise() or posix_madvise() even. In
that case, errno should be set to ENOSYS as it reflects the cause
better.

Signed-off-by: Michal Privoznik <[e-mail]>
Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
---
 util/osdep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/util/osdep.c b/util/osdep.c
index e42f4e8121..5d23bbfbec 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -64,7 +64,7 @@  int qemu_madvise(void *addr, size_t len, int advice)
     }
     return 0;
 #else
-    errno = EINVAL;
+    errno = ENOSYS;
     return -1;
 #endif
 }