diff options
| author | Johannes Berg | 2020-11-23 20:44:02 +0100 |
|---|---|---|
| committer | Richard Weinberger | 2020-12-13 22:22:01 +0100 |
| commit | d66c91836b8d7df3b6f0fe7f0c7617d28ebfcb4c (patch) | |
| tree | a0953ea75871cf93694a1ee5df30ab43bb95732f /arch/um/os-Linux | |
| parent | ef3ba87cb7c911bb5073e9ad30c4b37369e1a060 (diff) | |
um: sigio: Return error from add_sigio_fd()
If we run out of space, return an error instead of 0.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um/os-Linux')
| -rw-r--r-- | arch/um/os-Linux/sigio.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 75558080d0bf..f91fd16e9911 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c @@ -167,15 +167,17 @@ static void update_thread(void) int add_sigio_fd(int fd) { struct pollfd *p; - int err = 0, i, n; + int err, i, n; sigio_lock(); for (i = 0; i < all_sigio_fds.used; i++) { if (all_sigio_fds.poll[i].fd == fd) break; } - if (i == all_sigio_fds.used) + if (i == all_sigio_fds.used) { + err = -ENOSPC; goto out; + } p = &all_sigio_fds.poll[i]; |