pch_phub: return -ENODATA if ROM can't be mapped

[cascardo/linux.git] / drivers / misc / pch_phub.c

diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 15bb0c8..4810e03 100644 (file)
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -513,8 +513,10 @@ static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj,
 
        /* Get Rom signature */
        chip->pch_phub_extrom_base_address = pci_map_rom(chip->pdev, &rom_size);
-       if (!chip->pch_phub_extrom_base_address)
+       if (!chip->pch_phub_extrom_base_address) {
+               err = -ENODATA;
                goto exrom_map_err;
+       }
 
        pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address,
                                (unsigned char *)&rom_signature);