From 189e2dd1376c1eb2f3a717a15f1ed8c7d0b3811a Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 30 Oct 2005 15:03:33 -0800
Subject: [PATCH] [PATCH] hpet: allow non-power-of-two frequencies
It was only the RTC hardware that restricted interrupt frequencies to a power
of two. There is no reason to take over this restriction into the HPET
driver, so remove the offending check.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Acked-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
drivers/char/hpet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index e3c7c0096e17..85d39ff286c4 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -519,7 +519,7 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, int kernel)
break;
}
- if (!arg || (arg & (arg - 1))) {
+ if (!arg) {
err = -EINVAL;
break;
}
--
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