aboutsummaryrefslogtreecommitdiffstats
path: root/arch/ia64/kernel/acpi.c
diff options
context:
space:
mode:
authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>2005-07-28 14:42:00 -0400
committerLen Brown <len.brown@intel.com>2005-08-04 22:12:08 -0400
commit1f3a6a15771ed70d3b2581663dcc6b9bc134baa5 (patch)
tree3ff04aafd6c5ea69a0011662b6aa5ed2a6a2d623 /arch/ia64/kernel/acpi.c
parentbd6dbdf3c7b9784fbf5d8500e427a954e27a976a (diff)
[ACPI] acpi_register_gsi() can return error
Current acpi_register_gsi() function has no way to indicate errors to its callers even though acpi_register_gsi() can fail to register gsi because of some reasons (out of memory, lack of interrupt vectors, incorrect BIOS, and so on). As a result, caller of acpi_register_gsi() cannot handle the case that acpi_register_gsi() fails. I think failure of acpi_register_gsi() should be handled properly. This series of patches changes acpi_register_gsi() to return negative value on error, and also changes callers of acpi_register_gsi() to handle failure of acpi_register_gsi(). This patch changes the type of return value of acpi_register_gsi() from "unsigned int" to "int" to indicate an error. If acpi_register_gsi() fails to register gsi, it returns negative value. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/ia64/kernel/acpi.c')
-rw-r--r--arch/ia64/kernel/acpi.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 1c118b72df3c..7513ff9361a0 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -565,7 +565,11 @@ acpi_numa_arch_fixup (void)
565} 565}
566#endif /* CONFIG_ACPI_NUMA */ 566#endif /* CONFIG_ACPI_NUMA */
567 567
568unsigned int 568/*
569 * success: return IRQ number (>=0)
570 * failure: return < 0
571 */
572int
569acpi_register_gsi (u32 gsi, int edge_level, int active_high_low) 573acpi_register_gsi (u32 gsi, int edge_level, int active_high_low)
570{ 574{
571 if (has_8259 && gsi < 16) 575 if (has_8259 && gsi < 16)