From 13951ccfcdf0f31902a93859506ccf8c0ef66583 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Fri, 12 Jul 2024 17:13:15 +0200 Subject: [PATCH] aspeed/smc: Fix possible integer overflow MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Coverity reports a possible integer overflow because routine aspeeed_smc_hclk_divisor() has a codepath returning 0, which could lead to an integer overflow when computing variable 'hclk_shift' in the caller aspeed_smc_dma_calibration(). The value passed to aspeed_smc_hclk_divisor() is always between 0 and 15 and, in this case, there is always a matching hclk divisor. Remove the return 0 and use g_assert_not_reached() instead. Fixes: Coverity CID 1547822 Suggested-by: Peter Maydell Signed-off-by: Cédric Le Goater Reviewed-by: Peter Maydell --- hw/ssi/aspeed_smc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c index 49205ab76d..f39fb85a35 100644 --- a/hw/ssi/aspeed_smc.c +++ b/hw/ssi/aspeed_smc.c @@ -789,8 +789,7 @@ static uint8_t aspeed_smc_hclk_divisor(uint8_t hclk_mask) } } - aspeed_smc_error("invalid HCLK mask %x", hclk_mask); - return 0; + g_assert_not_reached(); } /*