splice: fix infinite loop in generic_file_splice_read()

[linux-2.6-omap-h63xx.git] / drivers / video / bw2.c

diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index 718b9f83736e51f81bfca1db17d3dc452435ea74..833b10c840646e69de4e95954b10a10ddcf5df03 100644 (file)
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -233,9 +233,9 @@ static u8 bw2regs_66hz[] __devinitdata = {
        0x10, 0x20,     0
 };
 
-static void __devinit bw2_do_default_mode(struct bw2_par *par,
-                                         struct fb_info *info,
-                                         int *linebytes)
+static int __devinit bw2_do_default_mode(struct bw2_par *par,
+                                        struct fb_info *info,
+                                        int *linebytes)
 {
        u8 status, mon;
        u8 *p;
@@ -266,17 +266,18 @@ static void __devinit bw2_do_default_mode(struct bw2_par *par,
                break;
 
        case BWTWO_SR_ID_NOCONN:
-               return;
+               return 0;
 
        default:
-               prom_printf("bw2: can't handle SR %02x\n",
-                           status);
-               prom_halt();
+               printk(KERN_ERR "bw2: can't handle SR %02x\n",
+                      status);
+               return -EINVAL;
        }
        for ( ; *p; p += 2) {
                u8 __iomem *regp = &((u8 __iomem *)par->regs)[p[0]];
                sbus_writeb(p[1], regp);
        }
+       return 0;
 }
 
 static int __devinit bw2_probe(struct of_device *op, const struct of_device_id *match)
@@ -312,8 +313,11 @@ static int __devinit bw2_probe(struct of_device *op, const struct of_device_id *
        if (!par->regs)
                goto out_release_fb;
 
-       if (!of_find_property(dp, "width", NULL))
-               bw2_do_default_mode(par, info, &linebytes);
+       if (!of_find_property(dp, "width", NULL)) {
+               err = bw2_do_default_mode(par, info, &linebytes);
+               if (err)
+                       goto out_unmap_regs;
+       }
 
        par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);