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| author | David Sterba <dsterba@suse.com> | 2016-01-12 13:35:50 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-01-12 15:02:55 +0100 |
| commit | ac4ec4d4f44e67fc3d1fd806cf7acbe2485cedee (patch) | |
| tree | 434f39155069a914bc76d3e9fdca87a331012b7a /send-test.c | |
| parent | 633dc6f80f201afdf5b8524ae377187d58f0ef3b (diff) | |
btrfs-progs: check for negative return value from ioctl
Handle only negative values returned by ioctl syscalls, with exception
of the device remove. It returns positive values that are handled later.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'send-test.c')
| -rw-r--r-- | send-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/send-test.c b/send-test.c index af8229e3..4645b898 100644 --- a/send-test.c +++ b/send-test.c @@ -420,7 +420,7 @@ int main(int argc, char **argv) io_send.flags = BTRFS_SEND_FLAG_NO_FILE_DATA; ret = ioctl(subvol_fd, BTRFS_IOC_SEND, &io_send); - if (ret) { + if (ret < 0) { ret = errno; fprintf(stderr, "ERROR: send ioctl failed with %d: %s\n", ret, strerror(ret)); |