[PATCH 4/6 v3] mmc: sdhci-spear: Handle return value of platform_get_irq
From: Arvind Yadav <hidden>
Date: 2017-11-19 04:53:26
Also in:
linux-amlogic, linux-mmc, lkml
Subsystem:
multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) driver, secure digital host controller interface (sdhci) st spear driver, the rest · Maintainers:
Ulf Hansson, Adrian Hunter, Viresh Kumar, Linus Torvalds
platform_get_irq() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <redacted>
---
changes in v2 :
Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.
changes in v3 :
return -EINVAL instead of host->irq.
drivers/mmc/host/sdhci-spear.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 8c0f884..e04485e 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c@@ -82,6 +82,10 @@ static int sdhci_probe(struct platform_device *pdev) host->hw_name = "sdhci"; host->ops = &sdhci_pltfm_ops; host->irq = platform_get_irq(pdev, 0); + if (host->irq <= 0) { + ret = -EINVAL; + goto err_host; + } host->quirks = SDHCI_QUIRK_BROKEN_ADMA; sdhci = sdhci_priv(host);
--
2.7.4