On writing errors, we just returned -1 even if some bytes were already
written out. Ensure we return the number of bytes written before we
return the error (on a subsequent call to qemu_chr_write()).
Signed-off-by: Amit Shah <amit.s...@redhat.com>
---
qemu-char.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index 05df971..6aaa362 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -522,8 +522,13 @@ static int unix_write(int fd, const uint8_t *buf, int len1)
while (len > 0) {
ret = write(fd, buf, len);
if (ret < 0) {
- if (errno != EINTR && errno != EAGAIN)
- return -1;
+ if (errno != EINTR && errno != EAGAIN) {
+ if (len1 - len) {
+ return len1 - len;
+ } else {
+ return -1;
+ }
+ }
} else if (ret == 0) {
break;
} else {
--
1.6.2.5
