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Fix an integer overflow bug in LPC17xx GPIO interrupt configuration

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4247 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-01-01 15:57:03 +00:00
parent 9a1c94e294
commit 6a3f04eeab
3 changed files with 8 additions and 5 deletions
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nuttx/arch/arm/src/lpc17xx/lpc17_gpio.c
+3 -3
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@@ -301,9 +301,9 @@ static void lpc17_setintedge(unsigned int port, unsigned int pin,
/* Set the requested value in the PINSEL register */
shift = pin << 1;
*intedge &= ~(3 << shift);
*intedge |= (value << shift);
shift = pin << 1;
*intedge &= ~((uint64_t)3 << shift);
*intedge |= ((uint64_t)value << shift);
}
#endif