When regulator_get() is stubbed down it returns NULL, handle this case when deciding whether the driver can use the regulator or not.
Remember: IS_ERR(NULL) is false, see also this discussion for more insight: http://comments.gmane.org/gmane.linux.kernel.mmc/7934 Now that regulator_get() is handled correctly, the ifdef on CONFIG_REGULATOR in mmci.c can go away as well. Signed-off-by: Antonio Ospite <[email protected]> --- drivers/mmc/host/dw_mmc.c | 2 +- drivers/mmc/host/mmci.c | 4 +--- drivers/mmc/host/mxcmmc.c | 2 +- drivers/mmc/host/omap_hsmmc.c | 4 ++-- drivers/mmc/host/sdhci.c | 2 +- 5 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 87e1f57..5be1325 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1442,7 +1442,7 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id) #endif /* CONFIG_MMC_DW_IDMAC */ host->vmmc = regulator_get(mmc_dev(mmc), "vmmc"); - if (IS_ERR(host->vmmc)) { + if (IS_ERR_OR_NULL(host->vmmc)) { printk(KERN_INFO "%s: no vmmc regulator found\n", mmc_hostname(mmc)); host->vmmc = NULL; } else diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index b4a7e4f..6fac353 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1058,10 +1058,9 @@ static int __devinit mmci_probe(struct amba_device *dev, mmc->f_max = min(host->mclk, fmax); dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max); -#ifdef CONFIG_REGULATOR /* If we're using the regulator framework, try to fetch a regulator */ host->vcc = regulator_get(&dev->dev, "vmmc"); - if (IS_ERR(host->vcc)) + if (IS_ERR_OR_NULL(host->vcc)) host->vcc = NULL; else { int mask = mmc_regulator_get_ocrmask(host->vcc); @@ -1077,7 +1076,6 @@ static int __devinit mmci_probe(struct amba_device *dev, "(using regulator instead)\n"); } } -#endif /* Fall back to platform data if no regulator is found */ if (host->vcc == NULL) mmc->ocr_avail = plat->ocr_mask; diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index cc20e02..a9152da 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -155,7 +155,7 @@ static inline void mxcmci_init_ocr(struct mxcmci_host *host) { host->vcc = regulator_get(mmc_dev(host->mmc), "vmmc"); - if (IS_ERR(host->vcc)) { + if (IS_ERR_OR_NULL(host->vcc)) { host->vcc = NULL; } else { host->mmc->ocr_avail = mmc_regulator_get_ocrmask(host->vcc); diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 259ece0..45fd4fe 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -405,7 +405,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) } reg = regulator_get(host->dev, "vmmc"); - if (IS_ERR(reg)) { + if (IS_ERR_OR_NULL(reg)) { dev_dbg(host->dev, "vmmc regulator missing\n"); /* * HACK: until fixed.c regulator is usable, @@ -433,7 +433,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) /* Allow an aux regulator */ reg = regulator_get(host->dev, "vmmc_aux"); - host->vcc_aux = IS_ERR(reg) ? NULL : reg; + host->vcc_aux = IS_ERR_OR_NULL(reg) ? NULL : reg; /* * UGLY HACK: workaround regulator framework bugs. diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 5d20661..d3585d4 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2004,7 +2004,7 @@ int sdhci_add_host(struct sdhci_host *host) goto untasklet; host->vmmc = regulator_get(mmc_dev(mmc), "vmmc"); - if (IS_ERR(host->vmmc)) { + if (IS_ERR_OR_NULL(host->vmmc)) { printk(KERN_INFO "%s: no vmmc regulator found\n", mmc_hostname(mmc)); host->vmmc = NULL; } else { -- 1.7.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
