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-rw-r--r--drivers/mtd/maps/esb2rom.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/mtd/maps/esb2rom.c b/drivers/mtd/maps/esb2rom.c
index 0bc013fd66a3..aa64a4752781 100644
--- a/drivers/mtd/maps/esb2rom.c
+++ b/drivers/mtd/maps/esb2rom.c
@@ -30,7 +30,7 @@
#define ROM_PROBE_STEP_SIZE (64*1024) /* 64KiB */
-#define BIOS_CNTL 0xDC
+#define BIOS_CNTL 0xDC
#define BIOS_LOCK_ENABLE 0x02
#define BIOS_WRITE_ENABLE 0x01
@@ -145,7 +145,7 @@ static void esb2rom_cleanup(struct esb2rom_window *window)
}
static int __devinit esb2rom_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *ent)
{
static char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL };
struct esb2rom_window *window = &esb2rom_window;
@@ -185,7 +185,7 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev,
/* Find a region continuous to the end of the ROM window */
window->phys = 0;
pci_read_config_word(pdev, FWH_DEC_EN1, &word);
- printk(KERN_DEBUG "pci_read_config_byte : %x\n", word);
+ printk(KERN_DEBUG "pci_read_config_word : %x\n", word);
if ((word & FWH_8MiB) == FWH_8MiB)
window->phys = 0xff400000;
@@ -212,6 +212,11 @@ static int __devinit esb2rom_init_one(struct pci_dev *pdev,
else if ((word & FWH_0_5MiB) == FWH_0_5MiB)
window->phys = 0xfff80000;
+ if (window->phys == 0) {
+ printk(KERN_ERR MOD_NAME ": Rom window is closed\n");
+ goto out;
+ }
+
/* reserved 0x0020 and 0x0010 */
window->phys -= 0x400000UL;
window->size = (0xffffffffUL - window->phys) + 1UL;