Merge branch 'linus' into x86/amd-iommu

[linux-2.6-omap-h63xx.git] / drivers / char / moxa.c

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 1ab9517c24c5ff84c5ee4d2960ae319114734ad5..e21346da3101c7c4c3304d5bcb935d0592f37723 100644 (file)
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -721,7 +721,7 @@ static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr,
 
 static int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw)
 {
-       void *ptr = fw->data;
+       const void *ptr = fw->data;
        char rsn[64];
        u16 lens[5];
        size_t len;
@@ -734,7 +734,7 @@ static int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw)
                u8 model;       /* C218T=1, C320T=2, CP204=3 */
                u8 reserved2[8];
                __le16 len[5];
-       } *hdr = ptr;
+       } const *hdr = ptr;
 
        BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens));
 
@@ -937,7 +937,7 @@ static int __devinit moxa_pci_probe(struct pci_dev *pdev,
                goto err;
        }
 
-       board->basemem = ioremap(pci_resource_start(pdev, 2), 0x4000);
+       board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000);
        if (board->basemem == NULL) {
                dev_err(&pdev->dev, "can't remap io space 2\n");
                goto err_reg;
@@ -1042,7 +1042,7 @@ static int __init moxa_init(void)
                        brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 :
                                        numports[i];
                        brd->busType = MOXA_BUS_TYPE_ISA;
-                       brd->basemem = ioremap(baseaddr[i], 0x4000);
+                       brd->basemem = ioremap_nocache(baseaddr[i], 0x4000);
                        if (!brd->basemem) {
                                printk(KERN_ERR "MOXA: can't remap %lx\n",
                                                baseaddr[i]);
@@ -1280,6 +1280,7 @@ static int moxa_chars_in_buffer(struct tty_struct *tty)
         */
        if (ch == NULL)
                return 0;
+       lock_kernel();
        chars = MoxaPortTxQueue(ch);
        if (chars) {
                /*
@@ -1289,6 +1290,7 @@ static int moxa_chars_in_buffer(struct tty_struct *tty)
                if (!(ch->statusflags & EMPTYWAIT))
                        moxa_setup_empty_event(tty);
        }
+       unlock_kernel();
        return chars;
 }