From: Kees van Reeuwijk <reeuwijk@few.vu.nl>
Date: Wed, 20 Jan 2010 17:59:48 +0000 (+0000)
Subject: Rewrote a number of cases where variables were used before they initialized.
X-Git-Tag: v3.1.6~61
X-Git-Url: http://zhaoyanbai.com/repos//%22https:/www.google.com/jsapi/%22?a=commitdiff_plain;h=53f9f943a8ff17a68df2fa41c0874a790075bca4;p=minix.git

Rewrote a number of cases where variables were used before they initialized.
---

diff --git a/drivers/audio/framework/audio_fw.c b/drivers/audio/framework/audio_fw.c
index 743002cb6..8434c5316 100644
--- a/drivers/audio/framework/audio_fw.c
+++ b/drivers/audio/framework/audio_fw.c
@@ -936,8 +936,8 @@ PRIVATE int init_buffers(sub_dev_t *sub_dev_ptr)
 	size= sub_dev_ptr->DmaSize + 64 * 1024;
 	base= alloc_contig(size, AC_ALIGN4K, &ph);
 	if (!base) {
-		error("%s: failed to allocate dma buffer for channel %d\n", 
-				drv.DriverName,i);
+		error("%s: failed to allocate dma buffer for a channel\n", 
+				drv.DriverName);
 		return EIO;
 	}
 	sub_dev_ptr->DmaBuf= base;
diff --git a/drivers/bios_wini/bios_wini.c b/drivers/bios_wini/bios_wini.c
index cbd615d86..ff5824b69 100644
--- a/drivers/bios_wini/bios_wini.c
+++ b/drivers/bios_wini/bios_wini.c
@@ -422,7 +422,7 @@ PRIVATE void w_init()
 
   /* Ask the system task for a suitable buffer */
   if(!(bios_buf_v = alloc_contig(BIOSBUF, AC_LOWER1M, &bios_buf_phys))) {
-  	panic(ME, "allocating bios buffer failed", r);
+  	panic(ME, "allocating bios buffer failed", ENOMEM);
   }
 
   if (bios_buf_phys+BIOSBUF > 0x100000)
diff --git a/drivers/dpeth/dp.c b/drivers/dpeth/dp.c
index 8b5be293d..bf8059d5a 100644
--- a/drivers/dpeth/dp.c
+++ b/drivers/dpeth/dp.c
@@ -390,7 +390,7 @@ static int calc_iovec_size(iovec_dat_s_t * iovp)
 }
 
 /*
-**  Name:	void do_vwrite_s(message *mp, int vectored)
+**  Name:	void do_vwrite_s(message *mp)
 **  Function:
 */
 static void do_vwrite_s(message * mp)
@@ -400,7 +400,7 @@ static void do_vwrite_s(message * mp)
 
   port = mp->DL_PORT;
   if (port < 0 || port >= DE_PORT_NR)	/* Check for illegal port number */
-	panic(dep->de_name, PortErrMsg, port);
+	panic(__FILE__, PortErrMsg, EINVAL);
 
   dep = &de_table[port];
   dep->de_client = mp->DL_PROC;
@@ -441,7 +441,7 @@ static void do_vread_s(message * mp)
 
   port = mp->DL_PORT;
   if (port < 0 || port >= DE_PORT_NR)	/* Check for illegal port number */
-	panic(dep->de_name, PortErrMsg, port);
+	panic(__FILE__, PortErrMsg, EINVAL);
 
   dep = &de_table[port];
   dep->de_client = mp->DL_PROC;
@@ -484,7 +484,7 @@ static void do_getstat_s(message * mp)
 
   port = mp->DL_PORT;
   if (port < 0 || port >= DE_PORT_NR)	/* Check for illegal port number */
-	panic(dep->de_name, PortErrMsg, port);
+	panic(__FILE__, PortErrMsg, EINVAL);
 
   dep = &de_table[port];
   dep->de_client = mp->DL_PROC;
@@ -522,7 +522,7 @@ static void do_stop(message * mp)
 
   port = mp->DL_PORT;
   if (port < 0 || port >= DE_PORT_NR)	/* Check for illegal port number */
-	panic(dep->de_name, PortErrMsg, port);
+	panic(__FILE__, PortErrMsg, EINVAL);
 
   dep = &de_table[port];
   if (dep->de_mode == DEM_ENABLED && (dep->de_flags & DEF_ENABLED)) {
@@ -598,7 +598,9 @@ PUBLIC int main(int argc, char **argv)
   sef_local_startup();
 
   while (TRUE) {
-	if ((rc = sef_receive(ANY, &m)) != OK) panic(dep->de_name, RecvErrMsg, rc);
+	if ((rc = sef_receive(ANY, &m)) != OK){
+		panic(__FILE__, RecvErrMsg, rc);
+	}
 
 	DEBUG(printf("eth: got message %d, ", m.m_type));
 
diff --git a/drivers/fxp/fxp.c b/drivers/fxp/fxp.c
index 3be1788bb..79bb5c614 100644
--- a/drivers/fxp/fxp.c
+++ b/drivers/fxp/fxp.c
@@ -410,7 +410,7 @@ PRIVATE int sef_cb_init_fresh(int type, sef_init_info_t *info)
 	eth_ign_proto= htons((u16_t) v);
 
 	if(!(fxp_table = alloc_contig(ft, 0, &fxp_table_phys)))
-		panic("FXP","couldn't allocate table", r);
+		panic("FXP","couldn't allocate table", ENOMEM);
 
 	memset(fxp_table, 0, ft);
 
diff --git a/drivers/orinoco/orinoco.c b/drivers/orinoco/orinoco.c
index c09a84467..7a34761cd 100644
--- a/drivers/orinoco/orinoco.c
+++ b/drivers/orinoco/orinoco.c
@@ -472,7 +472,6 @@ static void or_reset() {
 	t_or *orp;
 	int i, j, r;
 	u16_t irqmask;
-	hermes_t *hw = &(orp->hw);
 
 	if (OK != (r = getuptime(&now)))
 		panic(__FILE__, "orinoco: getuptime() failed:", r);
@@ -518,7 +517,6 @@ static void or_dump (message *m) {
 	t_or *orp;
 	int i, err;
 	u16_t evstat =0, d;
-	hermes_t *hw;
 
 	for (i = 0, orp = or_table; orp < or_table + OR_PORT_NR; i++, orp++) {
 		if(orp->or_mode == OR_M_DISABLED) {
@@ -1377,7 +1375,8 @@ static void or_writev (message * mp, int from_int, int vectored) {
 	struct ethhdr *eh;
 	t_or *orp;
 	clock_t timebefore, t0;	
-	phys_bytes phys_user, iov_src;
+	phys_bytes phys_user;
+	phys_bytes iov_src = 0;
 	hermes_t *hw;
 	struct hermes_tx_descriptor desc;
 	struct header_struct hdr;
@@ -1545,7 +1544,8 @@ static void or_writev_s (message * mp, int from_int) {
 	struct ethhdr *eh;
 	t_or *orp;
 	clock_t timebefore, t0;	
-	phys_bytes phys_user, iov_src;
+	phys_bytes phys_user;
+	phys_bytes iov_src = 0;
 	hermes_t *hw;
 	struct hermes_tx_descriptor desc;
 	int iov_offset = 0;
@@ -1992,7 +1992,8 @@ static void or_readv (message * mp, int from_int, int vectored) {
 	clock_t timebefore;
 	unsigned amount, totlen, packlen;
 	struct hermes_rx_descriptor desc;
-	phys_bytes dst_phys, iov_src;
+	phys_bytes dst_phys;
+	phys_bytes iov_src = 0;
 	u16_t d_start, d_end, rxfid, status;
 	struct header_struct hdr;
 	int length, offset;
@@ -2115,7 +2116,8 @@ static void or_readv_s (message * mp, int from_int) {
 	clock_t timebefore;
 	unsigned amount, totlen, packlen;
 	struct hermes_rx_descriptor desc;
-	phys_bytes dst_phys, iov_src;
+	phys_bytes dst_phys;
+	phys_bytes iov_src = 0;
 	u16_t d_start, d_end, rxfid, status;
 	struct header_struct hdr;
 	u32_t l, rxstat;
diff --git a/drivers/rtl8139/rtl8139.c b/drivers/rtl8139/rtl8139.c
index 888acf6b5..32e4f0d58 100644
--- a/drivers/rtl8139/rtl8139.c
+++ b/drivers/rtl8139/rtl8139.c
@@ -974,15 +974,13 @@ re_t *rep;
 /*===========================================================================*
  *				rl_readv				     *
  *===========================================================================*/
-static void rl_readv(mp, from_int, vectored)
-message *mp;
-int from_int;
-int vectored;
+static void rl_readv(message *mp, int from_int, int vectored)
 {
 	int i, j, n, o, s, s1, dl_port, re_client, count, size;
 	port_t port;
 	unsigned amount, totlen, packlen;
-	phys_bytes src_phys, dst_phys, iov_src;
+	phys_bytes src_phys, dst_phys;
+	phys_bytes iov_src = 0;
 	u16_t d_start, d_end;
 	u32_t l, rxstat = 0x12345678;
 	re_t *rep;
@@ -1226,14 +1224,13 @@ suspend:
 /*===========================================================================*
  *				rl_readv_s				     *
  *===========================================================================*/
-static void rl_readv_s(mp, from_int)
-message *mp;
-int from_int;
+static void rl_readv_s(message *mp, int from_int)
 {
 	int i, j, n, o, s, s1, dl_port, re_client, count, size;
 	port_t port;
 	unsigned amount, totlen, packlen;
-	phys_bytes src_phys, dst_phys, iov_src;
+	phys_bytes src_phys, dst_phys;
+	phys_bytes iov_src = 0;
 	u16_t d_start, d_end;
 	u32_t l, rxstat = 0x12345678;
 	re_t *rep;
@@ -1464,12 +1461,10 @@ suspend:
 /*===========================================================================*
  *				rl_writev				     *
  *===========================================================================*/
-static void rl_writev(mp, from_int, vectored)
-message *mp;
-int from_int;
-int vectored;
+static void rl_writev(message *mp, int from_int, int vectored)
 {
-	phys_bytes iov_src, phys_user;
+	phys_bytes iov_src = 0;
+	phys_bytes phys_user;
 	int i, j, n, s, port, count, size;
 	int tx_head, re_client;
 	re_t *rep;
@@ -1611,11 +1606,9 @@ suspend:
 /*===========================================================================*
  *				rl_writev_s				     *
  *===========================================================================*/
-static void rl_writev_s(mp, from_int)
-message *mp;
-int from_int;
+static void rl_writev_s(message *mp, int from_int)
 {
-	phys_bytes iov_src;
+	phys_bytes iov_src = 0;
 	int i, j, n, s, port, count, size;
 	int tx_head, re_client;
 	re_t *rep;
diff --git a/drivers/rtl8169/rtl8169.c b/drivers/rtl8169/rtl8169.c
index 867701289..19d9aab4d 100644
--- a/drivers/rtl8169/rtl8169.c
+++ b/drivers/rtl8169/rtl8169.c
@@ -1300,14 +1300,13 @@ void transmittest(re_t *rep)
 /*===========================================================================*
  *				rl_readv_s				     *
  *===========================================================================*/
-static void rl_readv_s(mp, from_int)
-message *mp;
-int from_int;
+static void rl_readv_s(message *mp, int from_int)
 {
 	int i, j, n, s, dl_port, re_client, count, size, index;
 	port_t port;
 	unsigned totlen, packlen;
-	phys_bytes src_phys, iov_src;
+	phys_bytes src_phys;
+	phys_bytes iov_src = 0;
 	re_desc *desc;
 	u32_t rxstat = 0x12345678;
 	re_t *rep;
@@ -1449,11 +1448,9 @@ suspend:
 /*===========================================================================*
  *				rl_writev_s				     *
  *===========================================================================*/
-static void rl_writev_s(mp, from_int)
-message *mp;
-int from_int;
+static void rl_writev_s(message *mp, int from_int)
 {
-	phys_bytes iov_src;
+	phys_bytes iov_src = 0;
 	int i, j, n, s, port, count, size;
 	int tx_head, re_client;
 	re_t *rep;