btio: Fix the return value of bt_io functions

Some bt_io methods were ignoring the value stored in errno when
reporting the error to the caller.

diff --git a/btio/btio.c b/btio/btio.c
index e84f6d0..2cc9082 100644 (file)
--- a/btio/btio.c
+++ b/btio/btio.c
@@ -271,8 +271,9 @@ static int l2cap_bind(int sock, const bdaddr_t *src, uint16_t psm,
                addr.l2_psm = htobs(psm);
 
        if (bind(sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+               int error = -errno;
                ERROR_FAILED(err, "l2cap_bind", errno);
-               return -1;
+               return error;
        }
 
        return 0;
@@ -294,7 +295,7 @@ static int l2cap_connect(int sock, const bdaddr_t *dst,
 
        err = connect(sock, (struct sockaddr *) &addr, sizeof(addr));
        if (err < 0 && !(errno == EAGAIN || errno == EINPROGRESS))
-               return err;
+               return -errno;
 
        return 0;
 }
@@ -558,8 +559,9 @@ static int rfcomm_bind(int sock,
        addr.rc_channel = channel;
 
        if (bind(sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+               int error = -errno;
                ERROR_FAILED(err, "rfcomm_bind", errno);
-               return -1;
+               return error;
        }
 
        return 0;
@@ -577,7 +579,7 @@ static int rfcomm_connect(int sock, const bdaddr_t *dst, uint8_t channel)
 
        err = connect(sock, (struct sockaddr *) &addr, sizeof(addr));
        if (err < 0 && !(errno == EAGAIN || errno == EINPROGRESS))
-               return err;
+               return -errno;
 
        return 0;
 }
@@ -604,8 +606,9 @@ static int sco_bind(int sock, const bdaddr_t *src, GError **err)
        bacpy(&addr.sco_bdaddr, src);
 
        if (bind(sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+               int error = -errno;
                ERROR_FAILED(err, "sco_bind", errno);
-               return -1;
+               return error;
        }
 
        return 0;
@@ -622,7 +625,7 @@ static int sco_connect(int sock, const bdaddr_t *dst)
 
        err = connect(sock, (struct sockaddr *) &addr, sizeof(addr));
        if (err < 0 && !(errno == EAGAIN || errno == EINPROGRESS))
-               return err;
+               return -errno;
 
        return 0;
 }