Hi Sachin,
On 04/15/2013 02:03 PM, Sachin Kamat wrote:
> If fimc->drv_data is NULL, then fimc->drv_data->num_entities would
> cause NULL pointer dereferencing.
> While at it also remove the check for fimc->id being negative as 'id' is
> unsigned variable and can't be less than 0.
>
> Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
> ---
> drivers/media/platform/exynos4-is/fimc-core.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/exynos4-is/fimc-core.c b/drivers/media/platform/exynos4-is/fimc-core.c
> index f25807d..d388832 100644
> --- a/drivers/media/platform/exynos4-is/fimc-core.c
> +++ b/drivers/media/platform/exynos4-is/fimc-core.c
> @@ -953,10 +953,9 @@ static int fimc_probe(struct platform_device *pdev)
> fimc->drv_data = fimc_get_drvdata(pdev);
> fimc->id = pdev->id;
> }
> - if (!fimc->drv_data || fimc->id >= fimc->drv_data->num_entities ||
> - fimc->id < 0) {
> - dev_err(dev, "Invalid driver data or device id (%d/%d)\n",
> - fimc->id, fimc->drv_data->num_entities);
> + if (!fimc->drv_data || fimc->id >= fimc->drv_data->num_entities) {
> + dev_err(dev, "Invalid driver data or device id (%d)\n",
> + fimc->id);
> return -EINVAL;
Thanks for the patch. To make it more explicit I would prefer to change
id type to 'int', and to leave the check for negative value. There is
a similar issue in fimc-lite.c that could be addressed in same patch.
Could you also fix this and resend ?
Regards,
Sylwester
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