Merge branch 'drm-forlinus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[pandora-kernel.git] / drivers / char / stallion.c

diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 1c68641..0e20780 100644 (file)
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -103,7 +103,7 @@ static stlconf_t    stl_brdconf[] = {
        /*{ BRD_EASYIO, 0x2a0, 0, 0, 10, 0 },*/
 };
 
-static int     stl_nrbrds = sizeof(stl_brdconf) / sizeof(stlconf_t);
+static int     stl_nrbrds = ARRAY_SIZE(stl_brdconf);
 
 /*****************************************************************************/
 
@@ -424,7 +424,7 @@ static stlpcibrd_t  stl_pcibrds[] = {
        { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410, BRD_ECHPCI },
 };
 
-static int     stl_nrpcibrds = sizeof(stl_pcibrds) / sizeof(stlpcibrd_t);
+static int     stl_nrpcibrds = ARRAY_SIZE(stl_pcibrds);
 
 #endif
 
@@ -704,7 +704,7 @@ static unsigned int sc26198_baudtable[] = {
        230400, 460800, 921600
 };
 
-#define        SC26198_NRBAUDS         (sizeof(sc26198_baudtable) / sizeof(unsigned int))
+#define        SC26198_NRBAUDS         ARRAY_SIZE(sc26198_baudtable)
 
 /*****************************************************************************/
 
@@ -785,8 +785,7 @@ static void __exit stallion_module_exit(void)
                        "errno=%d\n", -i);
        class_destroy(stallion_class);
 
-       if (stl_tmpwritebuf != (char *) NULL)
-               kfree(stl_tmpwritebuf);
+       kfree(stl_tmpwritebuf);
 
        for (i = 0; (i < stl_nrbrds); i++) {
                if ((brdp = stl_brds[i]) == (stlbrd_t *) NULL)
@@ -804,8 +803,7 @@ static void __exit stallion_module_exit(void)
                                        continue;
                                if (portp->tty != (struct tty_struct *) NULL)
                                        stl_hangup(portp->tty);
-                               if (portp->tx.buf != (char *) NULL)
-                                       kfree(portp->tx.buf);
+                               kfree(portp->tx.buf);
                                kfree(portp);
                        }
                        kfree(panelp);
@@ -903,7 +901,7 @@ static unsigned long stl_atol(char *str)
 static int stl_parsebrd(stlconf_t *confp, char **argp)
 {
        char    *sp;
-       int     nrbrdnames, i;
+       int     i;
 
 #ifdef DEBUG
        printk("stl_parsebrd(confp=%x,argp=%x)\n", (int) confp, (int) argp);
@@ -915,14 +913,13 @@ static int stl_parsebrd(stlconf_t *confp, char **argp)
        for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++)
                *sp = TOLOWER(*sp);
 
-       nrbrdnames = sizeof(stl_brdstr) / sizeof(stlbrdtype_t);
-       for (i = 0; (i < nrbrdnames); i++) {
+       for (i = 0; i < ARRAY_SIZE(stl_brdstr); i++) {
                if (strcmp(stl_brdstr[i].name, argp[0]) == 0)
                        break;
        }
-       if (i >= nrbrdnames) {
+       if (i == ARRAY_SIZE(stl_brdstr)) {
                printk("STALLION: unknown board name, %s?\n", argp[0]);
-               return(0);
+               return 0;
        }
 
        confp->brdtype = stl_brdstr[i].type;
@@ -2904,7 +2901,8 @@ static int stl_getportstats(stlport_t *portp, comstats_t __user *cp)
        if (portp->tty != (struct tty_struct *) NULL) {
                if (portp->tty->driver_data == portp) {
                        portp->stats.ttystate = portp->tty->flags;
-                       portp->stats.rxbuffered = portp->tty->flip.count;
+                       /* No longer available as a statistic */
+                       portp->stats.rxbuffered = 1; /*portp->tty->flip.count; */
                        if (portp->tty->termios != (struct termios *) NULL) {
                                portp->stats.cflags = portp->tty->termios->c_cflag;
                                portp->stats.iflags = portp->tty->termios->c_iflag;
@@ -4048,9 +4046,7 @@ static void stl_cd1400rxisr(stlpanel_t *panelp, int ioaddr)
        if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) {
                outb((RDCR + portp->uartaddr), ioaddr);
                len = inb(ioaddr + EREG_DATA);
-               if ((tty == (struct tty_struct *) NULL) ||
-                   (tty->flip.char_buf_ptr == (char *) NULL) ||
-                   ((buflen = TTY_FLIPBUF_SIZE - tty->flip.count) == 0)) {
+               if (tty == NULL || (buflen = tty_buffer_request_room(tty, len)) == 0) {
                        len = MIN(len, sizeof(stl_unwanted));
                        outb((RDSR + portp->uartaddr), ioaddr);
                        insb((ioaddr + EREG_DATA), &stl_unwanted[0], len);
@@ -4059,12 +4055,10 @@ static void stl_cd1400rxisr(stlpanel_t *panelp, int ioaddr)
                } else {
                        len = MIN(len, buflen);
                        if (len > 0) {
+                               unsigned char *ptr;
                                outb((RDSR + portp->uartaddr), ioaddr);
-                               insb((ioaddr + EREG_DATA), tty->flip.char_buf_ptr, len);
-                               memset(tty->flip.flag_buf_ptr, 0, len);
-                               tty->flip.flag_buf_ptr += len;
-                               tty->flip.char_buf_ptr += len;
-                               tty->flip.count += len;
+                               tty_prepare_flip_string(tty, &ptr, len);
+                               insb((ioaddr + EREG_DATA), ptr, len);
                                tty_schedule_flip(tty);
                                portp->stats.rxtotal += len;
                        }
@@ -4088,8 +4082,7 @@ static void stl_cd1400rxisr(stlpanel_t *panelp, int ioaddr)
                                portp->stats.txxoff++;
                        goto stl_rxalldone;
                }
-               if ((tty != (struct tty_struct *) NULL) &&
-                   ((portp->rxignoremsk & status) == 0)) {
+               if (tty != NULL && (portp->rxignoremsk & status) == 0) {
                        if (portp->rxmarkmsk & status) {
                                if (status & ST_BREAK) {
                                        status = TTY_BREAK;
@@ -4109,14 +4102,8 @@ static void stl_cd1400rxisr(stlpanel_t *panelp, int ioaddr)
                        } else {
                                status = 0;
                        }
-                       if (tty->flip.char_buf_ptr != (char *) NULL) {
-                               if (tty->flip.count < TTY_FLIPBUF_SIZE) {
-                                       *tty->flip.flag_buf_ptr++ = status;
-                                       *tty->flip.char_buf_ptr++ = ch;
-                                       tty->flip.count++;
-                               }
-                               tty_schedule_flip(tty);
-                       }
+                       tty_insert_flip_char(tty, ch, status);
+                       tty_schedule_flip(tty);
                }
        } else {
                printk("STALLION: bad RX interrupt ack value=%x\n", ioack);
@@ -5015,9 +5002,7 @@ static void stl_sc26198rxisr(stlport_t *portp, unsigned int iack)
        len = inb(ioaddr + XP_DATA) + 1;
 
        if ((iack & IVR_TYPEMASK) == IVR_RXDATA) {
-               if ((tty == (struct tty_struct *) NULL) ||
-                   (tty->flip.char_buf_ptr == (char *) NULL) ||
-                   ((buflen = TTY_FLIPBUF_SIZE - tty->flip.count) == 0)) {
+               if (tty == NULL || (buflen = tty_buffer_request_room(tty, len)) == 0) {
                        len = MIN(len, sizeof(stl_unwanted));
                        outb(GRXFIFO, (ioaddr + XP_ADDR));
                        insb((ioaddr + XP_DATA), &stl_unwanted[0], len);
@@ -5026,12 +5011,10 @@ static void stl_sc26198rxisr(stlport_t *portp, unsigned int iack)
                } else {
                        len = MIN(len, buflen);
                        if (len > 0) {
+                               unsigned char *ptr;
                                outb(GRXFIFO, (ioaddr + XP_ADDR));
-                               insb((ioaddr + XP_DATA), tty->flip.char_buf_ptr, len);
-                               memset(tty->flip.flag_buf_ptr, 0, len);
-                               tty->flip.flag_buf_ptr += len;
-                               tty->flip.char_buf_ptr += len;
-                               tty->flip.count += len;
+                               tty_prepare_flip_string(tty, &ptr, len);
+                               insb((ioaddr + XP_DATA), ptr, len);
                                tty_schedule_flip(tty);
                                portp->stats.rxtotal += len;
                        }
@@ -5099,14 +5082,8 @@ static inline void stl_sc26198rxbadch(stlport_t *portp, unsigned char status, ch
                        status = 0;
                }
 
-               if (tty->flip.char_buf_ptr != (char *) NULL) {
-                       if (tty->flip.count < TTY_FLIPBUF_SIZE) {
-                               *tty->flip.flag_buf_ptr++ = status;
-                               *tty->flip.char_buf_ptr++ = ch;
-                               tty->flip.count++;
-                       }
-                       tty_schedule_flip(tty);
-               }
+               tty_insert_flip_char(tty, ch, status);
+               tty_schedule_flip(tty);
 
                if (status == 0)
                        portp->stats.rxtotal++;