From: Christian Gromm <christian.gromm@microchip.com>
Date: Mon, 3 Aug 2015 11:44:30 +0000 (+0200)
Subject: Staging: most: avoid possible integer overflow
X-Git-Tag: v4.14-rc1~4839^2~275
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2ae0751007cdf2deaa87e160f28c50a00b478883;p=platform%2Fkernel%2Flinux-rpi.git

Staging: most: avoid possible integer overflow

This patch prevents a potential integer overlow.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c
index f872dc0..f4fea8c 100644
--- a/drivers/staging/most/mostcore/core.c
+++ b/drivers/staging/most/mostcore/core.c
@@ -1260,7 +1260,7 @@ int arm_mbo_chain(struct most_c_obj *c, int dir, void (*compl)(struct mbo *))
 	unsigned int i;
 	int retval;
 	struct mbo *mbo;
-	u16 coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len;
+	u32 coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len;
 
 	atomic_set(&c->mbo_nq_level, 0);