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SubjectRe: [PATCH] media: vsp1: fix memory leak of dl on error return path
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On 29/07/2019 13:11, Kieran Bingham wrote:
> Hi Colin,
>
> On 28/07/2019 18:11, Colin King wrote:
>> From: Colin Ian King <colin.king@canonical.com>
>>
>> Currently when the call vsp1_dl_body_get fails and returns null the
>> error return path leaks the allocation of dl. Fix this by kfree'ing
>> dl before returning.
>
> Eeep. This does indeed look to be the case.
>
>>
>> Addresses-Coverity: ("Resource leak")
>> Fixes: 5d7936b8e27d ("media: vsp1: Convert display lists to use new body pool")
>> Signed-off-by: Colin Ian King <colin.king@canonical.com>
>
> Thank you!

Thank static analysis :-)

>
> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
>
>
>> ---
>> drivers/media/platform/vsp1/vsp1_dl.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/platform/vsp1/vsp1_dl.c b/drivers/media/platform/vsp1/vsp1_dl.c
>> index 104b6f514536..d7b43037e500 100644
>> --- a/drivers/media/platform/vsp1/vsp1_dl.c
>> +++ b/drivers/media/platform/vsp1/vsp1_dl.c
>> @@ -557,8 +557,10 @@ static struct vsp1_dl_list *vsp1_dl_list_alloc(struct vsp1_dl_manager *dlm)
>>
>> /* Get a default body for our list. */
>> dl->body0 = vsp1_dl_body_get(dlm->pool);
>> - if (!dl->body0)
>> + if (!dl->body0) {
>> + kfree(dl);
>> return NULL;
>> + }
>>
>> header_offset = dl->body0->max_entries * sizeof(*dl->body0->entries);
>>
>>
>

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