diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/sdhci.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 8e9100bd57ef..0d9c327a84b0 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -1030,7 +1030,14 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot) else /* XXX: Hack to get MMC layer to avoid highmem */ pdev->dma_mask = 0; - host->max_clk = (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT; + host->max_clk = + (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT; + if (host->max_clk == 0) { + printk(KERN_ERR "%s: Hardware doesn't specify base clock " + "frequency.\n", host->slot_descr); + ret = -ENODEV; + goto unmap; + } host->max_clk *= 1000000; /* @@ -1078,7 +1085,7 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot) ret = request_irq(host->irq, sdhci_irq, SA_SHIRQ, host->slot_descr, host); if (ret) - goto unmap; + goto untasklet; sdhci_init(host); @@ -1097,10 +1104,10 @@ static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot) return 0; -unmap: +untasklet: tasklet_kill(&host->card_tasklet); tasklet_kill(&host->finish_tasklet); - +unmap: iounmap(host->ioaddr); release: pci_release_region(pdev, host->bar); |