Re: [PATCH] Driver Core fixes for 2.6.6-rc2

[Greg KH <greg@kroah.com>]

ChangeSet 1.1928, 2004/04/22 14:36:55-07:00, lkml@lievin.net

[PATCH] tipar char driver: wrong timeout value

this patch (2.4 & 2.6) fixes a bug about the timeout value. The formula
used to calculate jiffies from timeout is wrong.
The new formula is ok and takes care of integer computation/rounding.
There is the same bug in the tiglusb.c module which will be fixed by another
patch.


 drivers/char/tipar.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)


diff -Nru a/drivers/char/tipar.c b/drivers/char/tipar.c
--- a/drivers/char/tipar.c	Thu Apr 22 15:27:12 2004
+++ b/drivers/char/tipar.c	Thu Apr 22 15:27:12 2004
@@ -121,7 +121,7 @@
 
 /* ----- global defines ----------------------------------------------- */
 
-#define START(x) { x=jiffies+HZ/(timeout/10); }
+#define START(x) { x = jiffies + (HZ * timeout) / 10; }
 #define WAIT(x)  { \
   if (time_before((x), jiffies)) return -1; \
   if (need_resched()) schedule(); }