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* [PATCH v1 1/1] coresight: core: Switch to krealloc_array()
@ 2021-05-20 13:50 Andy Shevchenko
  2021-05-21 16:10 ` Mathieu Poirier
  0 siblings, 1 reply; 2+ messages in thread
From: Andy Shevchenko @ 2021-05-20 13:50 UTC (permalink / raw)
  To: Greg Kroah-Hartman, Mathieu Poirier, coresight, linux-arm-kernel,
	linux-kernel
  Cc: Suzuki K Poulose, Mike Leach, Leo Yan, Alexander Shishkin,
	Andy Shevchenko

Let the krealloc_array() check for multiplication overflow.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/hwtracing/coresight/coresight-core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index 6c68d34d956e..a7971c68b0be 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -1730,9 +1730,9 @@ char *coresight_alloc_device_name(struct coresight_dev_list *dict,
 	if (idx < 0) {
 		/* Make space for the new entry */
 		idx = dict->nr_idx;
-		list = krealloc(dict->fwnode_list,
-				(idx + 1) * sizeof(*dict->fwnode_list),
-				GFP_KERNEL);
+		list = krealloc_array(dict->fwnode_list,
+				      idx + 1, sizeof(*dict->fwnode_list),
+				      GFP_KERNEL);
 		if (ZERO_OR_NULL_PTR(list)) {
 			idx = -ENOMEM;
 			goto done;
-- 
2.30.2


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2021-05-20 13:50 [PATCH v1 1/1] coresight: core: Switch to krealloc_array() Andy Shevchenko
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