[PATCH 1/4] ACPI: ec: Do request_region outside WARN()

From: Andi Kleen
Date: Tue Dec 27 2011 - 01:35:47 EST


WARN() is not supposed to have side effects, so move the request_regions
outside.

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
drivers/acpi/ec.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b19a18d..3268dcf 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -812,10 +812,10 @@ static int acpi_ec_add(struct acpi_device *device)
first_ec = ec;
device->driver_data = ec;

- WARN(!request_region(ec->data_addr, 1, "EC data"),
- "Could not request EC data io port 0x%lx", ec->data_addr);
- WARN(!request_region(ec->command_addr, 1, "EC cmd"),
- "Could not request EC cmd io port 0x%lx", ec->command_addr);
+ ret = !!request_region(ec->data_addr, 1, "EC data");
+ WARN(!ret, "Could not request EC data io port 0x%lx", ec->data_addr);
+ ret = !!request_region(ec->command_addr, 1, "EC cmd");
+ WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);

pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
ec->gpe, ec->command_addr, ec->data_addr);
--
1.7.7

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/