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Message-ID: <20061011214809.GA21756@havoc.gtf.org>
Date: Wed, 11 Oct 2006 17:48:09 -0400
From: Jeff Garzik <jeff@...zik.org>
To: oakad@...oo.com, Andrew Morton <akpm@...l.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] drivers/{mmc,misc}: handle PCI errors on resume
Since pci_enable_device() is one of the first things called in the
resume step, take the minimalist approach and return immediately, if
pci_enable_device() fails during resume.
Also, in sdhci: don't check for impossible condition (chip==NULL)
Signed-off-by: Jeff Garzik <jeff@...zik.org>
---
drivers/misc/tifm_7xx1.c | 7 ++++++-
drivers/mmc/sdhci.c | 11 +++++------
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index 1ba8754..03988b9 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -273,9 +273,14 @@ static int tifm_7xx1_resume(struct pci_d
{
struct tifm_adapter *fm = pci_get_drvdata(dev);
unsigned long flags;
+ int rc;
pci_restore_state(dev);
- pci_enable_device(dev);
+
+ rc = pci_enable_device(dev);
+ if (rc)
+ return rc;
+
pci_set_power_state(dev, PCI_D0);
pci_set_master(dev);
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 9a7d39b..b27fff9 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -1090,18 +1090,17 @@ static int sdhci_suspend (struct pci_dev
static int sdhci_resume (struct pci_dev *pdev)
{
- struct sdhci_chip *chip;
+ struct sdhci_chip *chip = pci_get_drvdata(pdev);
int i, ret;
- chip = pci_get_drvdata(pdev);
- if (!chip)
- return 0;
-
DBG("Resuming...\n");
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- pci_enable_device(pdev);
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
for (i = 0;i < chip->num_slots;i++) {
if (!chip->hosts[i])
-
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