[PATCH linux-next] rt2x00: rt2x00pci_regbusy_read() - only print register access failure once

From: Tim Gardner
Date: Mon Feb 18 2013 - 14:56:48 EST

BugLink: http://bugs.launchpad.net/bugs/1128840

It appears that when this register read fails it never recovers, so
I think there is no need to repeat the same error message ad infinitum.

Cc: Ivo van Doorn <IvDoorn@xxxxxxxxx>
Cc: Gertjan van Wingerde <gwingerde@xxxxxxxxx>
Cc: Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx>
Cc: "John W. Linville" <linville@xxxxxxxxxxxxx>
Cc: linux-wireless@xxxxxxxxxxxxxxx
Cc: users@xxxxxxxxxxxxxxxxxxxxxxx
Cc: netdev@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>

This patch applies as far back as 3.0.65 (and maybe older but that is
as far back as I checked).

drivers/net/wireless/rt2x00/rt2x00pci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index a0c8cae..b1c673e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -52,8 +52,8 @@ int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,

- ERROR(rt2x00dev, "Indirect register access failed: "
- "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
+ printk_once(KERN_ERR "%s() Indirect register access failed: "
+ "offset=0x%.08x, value=0x%.08x\n", __func__, offset, *reg);
*reg = ~0;

return 0;

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