The patch titled
Subject: lib/lcm.c: ensure correct result whenever it fits
has been added to the -mm tree. Its filename is
lib-lcmc-ensure-correct-result-whenever-it-fits.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-lcmc-ensure-correct-result-whenever-it-fits.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-lcmc-ensure-correct-result-whenever-it-fits.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: lib/lcm.c: ensure correct result whenever it fits
Ensure that lcm(a,b) returns the mathematically correct result, provided
it fits in an unsigned long. The current version returns garbage if a*b
overflows, even if the final result would fit.
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/lcm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN lib/lcm.c~lib-lcmc-ensure-correct-result-whenever-it-fits lib/lcm.c
--- a/lib/lcm.c~lib-lcmc-ensure-correct-result-whenever-it-fits
+++ a/lib/lcm.c
@@ -7,7 +7,7 @@
unsigned long lcm(unsigned long a, unsigned long b)
{
if (a && b)
- return (a * b) / gcd(a, b);
+ return (a / gcd(a, b)) * b;
else if (b)
return b;
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
lib-lcmc-ensure-correct-result-whenever-it-fits.patch
lib-lcmc-lcmn0=lcm0n-is-0-not-n.patch
linux-next.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
