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btrfs-progs: send: use proper type for read result, and rename the variable 

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2016-11-02 14:00:07 +01:00
parent 76fc07e3a6
commit aec1d7fa8b
1 changed files with 6 additions and 5 deletions
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11
cmds-send.c
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@ -225,21 +225,22 @@ static void *dump_thread(void *arg_)
int ret;
struct btrfs_send *s = (struct btrfs_send*)arg_;
char buf[SEND_BUFFER_SIZE];
int readed;
while (1) {
readed = read(s->send_fd, buf, sizeof(buf));
if (readed < 0) {
ssize_t rbytes;
rbytes = read(s->send_fd, buf, sizeof(buf));
if (rbytes < 0) {
ret = -errno;
error("failed to read stream from kernel: %s\n",
strerror(-ret));
goto out;
}
if (!readed) {
if (!rbytes) {
ret = 0;
goto out;
}
ret = write_buf(s->dump_fd, buf, readed);
ret = write_buf(s->dump_fd, buf, rbytes);
if (ret < 0)
goto out;
}