* [PATCH][next] media: venus: core,pm: fix potential infinite loop
@ 2021-04-07 13:48 Colin King
0 siblings, 0 replies; only message in thread
From: Colin King @ 2021-04-07 13:48 UTC (permalink / raw)
To: Stanimir Varbanov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, Bryan O'Donoghue, linux-media,
linux-arm-msm
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
The for-loop iterates with a u8 loop counter i and compares this
with the loop upper limit of res->resets_num which is an unsigned
int type. There is a potential infinite loop if res->resets_num
is larger than the u8 loop counter i. Fix this by making the loop
counter the same type as res->resets_num.
Addresses-Coverity: ("Infinite loop")
Fixes: 3bca43585e22 ("media: venus: core,pm: Add handling for resets")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/media/platform/qcom/venus/pm_helpers.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index dfe3ee84eeb6..5c0a9aa23e83 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -868,7 +868,7 @@ static void vcodec_domains_put(struct venus_core *core)
static int core_resets_reset(struct venus_core *core)
{
const struct venus_resources *res = core->res;
- unsigned char i;
+ unsigned int i;
int ret;
if (!res->resets_num)
@@ -893,7 +893,7 @@ static int core_resets_get(struct venus_core *core)
{
struct device *dev = core->dev;
const struct venus_resources *res = core->res;
- unsigned char i;
+ unsigned int i;
int ret;
if (!res->resets_num)
--
2.30.2
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