From a246b97358bcb888fe3d994d120751c3622c3239 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Wed, 5 Mar 2014 10:44:57 +0100 Subject: [PATCH] pch_phub: Report error writing MAC back to user Signed-off-by: Alexander Stein Signed-off-by: Greg Kroah-Hartman --- drivers/misc/pch_phub.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c index a5925f7f17f6..956597321d2a 100644 --- a/drivers/misc/pch_phub.c +++ b/drivers/misc/pch_phub.c @@ -636,6 +636,7 @@ static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr, u8 mac[ETH_ALEN]; ssize_t rom_size; struct pch_phub_reg *chip = dev_get_drvdata(dev); + int ret; if (!mac_pton(buf, mac)) return -EINVAL; @@ -644,8 +645,10 @@ static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr, if (!chip->pch_phub_extrom_base_address) return -ENOMEM; - pch_phub_write_gbe_mac_addr(chip, mac); + ret = pch_phub_write_gbe_mac_addr(chip, mac); pci_unmap_rom(chip->pdev, chip->pch_phub_extrom_base_address); + if (ret) + return ret; return count; } -- 2.34.1