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2d2ad6f704
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11887 3c298f89-4303-0410-b956-a3cf2f4a3e73
19 lines
573 B
Diff
19 lines
573 B
Diff
Backport gpio_is_valid() for gpiolib from linux-2.6.26
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Index: linux-2.6.25.10/include/asm-generic/gpio.h
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===================================================================
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--- linux-2.6.25.10.orig/include/asm-generic/gpio.h 2008-07-03 05:46:47.000000000 +0200
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+++ linux-2.6.25.10/include/asm-generic/gpio.h 2008-07-20 20:32:12.000000000 +0200
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@@ -16,6 +16,12 @@
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#define ARCH_NR_GPIOS 256
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#endif
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+static inline int gpio_is_valid(int number)
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+{
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+ /* only some non-negative numbers are valid */
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+ return ((unsigned)number) < ARCH_NR_GPIOS;
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+}
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+
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struct seq_file;
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/**
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