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authorPatrick Rudolph <patrick.rudolph@9elements.com>2018-07-12 13:13:24 +0200
committerPatrick Rudolph <siro@das-labor.org>2018-07-17 08:05:13 +0000
commit239e435739aff51f8e680f75e8130eb3c488901d (patch)
tree3137b793e191b5a4d1bc4bf4becfb2eb3b779048
parent4461613119a04f86899a7423658f91b2fe10125b (diff)
downloadcoreboot-239e435739aff51f8e680f75e8130eb3c488901d.tar.xz
cavium/bdk: Fix possible divide by zero
Fix Coverity CID1393970 Change-Id: I5db6866b8e51eaea201a4c03e59d7d00f4f826e7 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/27453 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
-rw-r--r--src/vendorcode/cavium/bdk/libbdk-hal/bdk-usb.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-usb.c b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-usb.c
index eb2a85fa0d..83ce563601 100644
--- a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-usb.c
+++ b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-usb.c
@@ -369,7 +369,9 @@ int bdk_usb_initialize(bdk_node_t node, int usb_port, bdk_usb_clock_t clock_type
uint64_t fr_div;
if (divider < 5) fr_div = divider * 2;
else fr_div = 8 * (divider - 3);
- uint64_t freq = (typeof(freq)) (sclk_rate / fr_div);
+ uint64_t freq = 0;
+ if (fr_div > 0)
+ freq = (typeof(freq)) (sclk_rate / fr_div);
const char *token;
if (freq < 62500000ULL) token = "???Low";
else if (freq < 90000000ULL) token = "USB2";