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path: root/drivers/memory/tegra20-mc.c
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Diffstat (limited to 'drivers/memory/tegra20-mc.c')
-rw-r--r--drivers/memory/tegra20-mc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/memory/tegra20-mc.c b/drivers/memory/tegra20-mc.c
index 2ca5f2814f4..7cd82b874ab 100644
--- a/drivers/memory/tegra20-mc.c
+++ b/drivers/memory/tegra20-mc.c
@@ -193,8 +193,11 @@ static irqreturn_t tegra20_mc_isr(int irq, void *data)
mask &= stat;
if (!mask)
return IRQ_NONE;
- while ((bit = ffs(mask)) != 0)
+ while ((bit = ffs(mask)) != 0) {
tegra20_mc_decode(mc, bit - 1);
+ mask &= ~BIT(bit - 1);
+ }
+
mc_writel(mc, stat, MC_INTSTATUS);
return IRQ_HANDLED;
}
@@ -215,8 +218,6 @@ static int tegra20_mc_probe(struct platform_device *pdev)
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- if (!res)
- return -ENODEV;
mc->regs[i] = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mc->regs[i]))
return PTR_ERR(mc->regs[i]);