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[ARM] 3480/1: ixp4xx: fix irq2gpio array type

Patch from Lennert Buytenhek

The irq2gpio array was recently converted from an array of ints to an
array of chars (by patch 3368/1.)  However, this array contains elements
that are -1, and on ARM, the char type is unsigned by default, so this
patch broke the GPIO check in ixp4xx_set_irq_type.

Change the 'char' to be a 'signed char' to fix this.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Lennert Buytenhek 19 年之前
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共有 1 个文件被更改,包括 1 次插入1 次删除
  1. 1 1
      arch/arm/mach-ixp4xx/common.c

+ 1 - 1
arch/arm/mach-ixp4xx/common.c

@@ -91,7 +91,7 @@ static void ixp4xx_config_irq(unsigned irq, enum ixp4xx_irq_type type);
 /*
  * IRQ -> GPIO mapping table
  */
-static char irq2gpio[32] = {
+static signed char irq2gpio[32] = {
 	-1, -1, -1, -1, -1, -1,  0,  1,
 	-1, -1, -1, -1, -1, -1, -1, -1,
 	-1, -1, -1,  2,  3,  4,  5,  6,