From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
There are memory leaks of params; when copy_to_user fails and also
the exit via the label 'error'. Fix this by kfree'ing params in
error exit path and jumping to this on the copy_to_user failure path.
Detected by CoverityScan, CID#1467966 ("Resource leak")
Fixes: da43b6ccadcf ("[media] davinci: vpfe: dm365: add IPIPE support for media controller driver")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/staging/media/davinci_vpfe/dm365_ipipe.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
index 95942768639c..3e67ee6e92f9 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
@@ -1252,12 +1252,12 @@ static const struct ipipe_module_if ipipe_modules[VPFE_IPIPE_MAX_MODULES] = {
static int ipipe_s_config(struct v4l2_subdev *sd, struct vpfe_ipipe_config *cfg)
{
struct vpfe_ipipe_device *ipipe = v4l2_get_subdevdata(sd);
+ struct ipipe_module_params *params;
unsigned int i;
int rval = 0;
for (i = 0; i < ARRAY_SIZE(ipipe_modules); i++) {
const struct ipipe_module_if *module_if;
- struct ipipe_module_params *params;
void *from, *to;
size_t size;
@@ -1275,7 +1275,7 @@ static int ipipe_s_config(struct v4l2_subdev *sd, struct vpfe_ipipe_config *cfg)
if (to && from && size) {
if (copy_from_user(to, (void __user *)from, size)) {
rval = -EFAULT;
- break;
+ goto error;
}
rval = module_if->set(ipipe, to);
if (rval)
@@ -1287,7 +1287,9 @@ static int ipipe_s_config(struct v4l2_subdev *sd, struct vpfe_ipipe_config *cfg)
}
kfree(params);
}
+ return rval;
error:
+ kfree(params);
return rval;
}
--
2.17.0
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