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Diffstat (limited to 'src/shared/util.c')
-rw-r--r--src/shared/util.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index ff8835b72d..26a4f72b43 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -2292,13 +2292,15 @@ ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll) {
return n;
}
-ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
+int loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
const uint8_t *p = buf;
ssize_t n = 0;
assert(fd >= 0);
assert(buf);
+ errno = 0;
+
while (nbytes > 0) {
ssize_t k;
@@ -2317,14 +2319,15 @@ ssize_t loop_write(int fd, const void *buf, size_t nbytes, bool do_poll) {
}
if (k <= 0)
- return n > 0 ? n : (k < 0 ? -errno : 0);
+ /* We were not done yet, and a write error occured. */
+ return errno ? -errno : -EIO;
p += k;
nbytes -= k;
n += k;
}
- return n;
+ return 0;
}
int parse_size(const char *t, off_t base, off_t *size) {