[PATCH] Staging: most: avoid possible integer overflow

Christian Gromm christian.gromm at microchip.com
Mon Aug 3 11:44:30 UTC 2015


This patch prevents a potential integer overlow.

Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
Signed-off-by: Christian Gromm <christian.gromm at microchip.com>
---
 drivers/staging/most/mostcore/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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);
 
-- 
1.7.9.5



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