Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=90205c6cbb8fd9880bf798903a99f5b8903455e2
Commit: 90205c6cbb8fd9880bf798903a99f5b8903455e2
Parent: 3faa1ffb4f4be7d10715f4b003ff7b27d14eae26
Author: Jean Delvare <[EMAIL PROTECTED]>
AuthorDate: Sat Jun 23 14:58:22 2007 +0200
Committer: Mark M. Hoffman <[EMAIL PROTECTED]>
CommitDate: Thu Jul 19 14:22:16 2007 -0400
hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM
Also protects ourselves against a possible division by zero.
Signed-off-by: Jean Delvare <[EMAIL PROTECTED]>
Signed-off-by: Mark M. Hoffman <[EMAIL PROTECTED]>
---
drivers/hwmon/smsc47b397.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
index 3b65b0e..45266b3 100644
--- a/drivers/hwmon/smsc47b397.c
+++ b/drivers/hwmon/smsc47b397.c
@@ -174,6 +174,8 @@ static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp,
NULL, 3);
REG: count of 90kHz pulses / revolution */
static int fan_from_reg(u16 reg)
{
+ if (reg == 0 || reg == 0xffff)
+ return 0;
return 90000 * 60 / reg;
}
-
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