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| author | Vladimir Zapolskiy <vz@mleia.com> | 2015-12-02 09:10:28 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-01-11 22:19:59 +0300 |
| commit | 529af7d1982562eafdc01760d44d990c7e3dcd82 (patch) | |
| tree | 161d66aa2424c46514eabe319b72f3eedf631e99 /drivers/rtc | |
| parent | d5878a869fe8c272d3a843a47ef0716c91ba3e25 (diff) | |
| download | linux-529af7d1982562eafdc01760d44d990c7e3dcd82.tar.xz | |
rtc: lpc32xx: remove irq > NR_IRQS check from probe()
If the driver is used on an ARM platform with SPARSE_IRQ defined,
semantics of NR_IRQS is different (minimal value of virtual irqs)
and by default it is set to 16, see arch/arm/include/asm/irq.h.
This value may be less than the actual number of virtual irqs, which
may break the driver initialization. The check removal allows to use
the driver on such a platform, and, if irq controller driver works
correctly, the check is not needed on legacy platforms.
Fixes a runtime problem:
rtc-lpc32xx 40024000.rtc: Can't get interrupt resource
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-lpc32xx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c index f923f7324788..887871c3d526 100644 --- a/drivers/rtc/rtc-lpc32xx.c +++ b/drivers/rtc/rtc-lpc32xx.c @@ -205,7 +205,7 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) u32 tmp; rtcirq = platform_get_irq(pdev, 0); - if (rtcirq < 0 || rtcirq >= NR_IRQS) { + if (rtcirq < 0) { dev_warn(&pdev->dev, "Can't get interrupt resource\n"); rtcirq = -1; } |