From: Greg KH <gre...@linuxfoundation.org> 3.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Hiroaki SHIMODA <shimoda.hiro...@gmail.com> [ Upstream commit 0cfd32b736ae0c36b42697584811042726c07cba ] POSDIFF() fails to take into account integer overflow case. Signed-off-by: Hiroaki SHIMODA <shimoda.hiro...@gmail.com> Cc: Tom Herbert <therb...@google.com> Cc: Eric Dumazet <eric.duma...@gmail.com> Cc: Denys Fedoryshchenko <de...@visp.net.lb> Acked-by: Eric Dumazet <eduma...@google.com> Signed-off-by: David S. Miller <da...@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- lib/dynamic_queue_limits.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/dynamic_queue_limits.c +++ b/lib/dynamic_queue_limits.c @@ -10,7 +10,7 @@ #include <linux/jiffies.h> #include <linux/dynamic_queue_limits.h> -#define POSDIFF(A, B) ((A) > (B) ? (A) - (B) : 0) +#define POSDIFF(A, B) ((int)((A) - (B)) > 0 ? (A) - (B) : 0) /* Records completed count and recalculates the queue limit */ void dql_completed(struct dql *dql, unsigned int count) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
