2015-07-09 21:19 GMT+08:00 Krzysztof Kozlowski <k.kozlowski.k@xxxxxxxxx>:
> Value returned by devm_ioremap_resource() was checked for non-NULL but
> devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of
> error this could lead to dereference of ERR_PTR.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@xxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: 6fc3d24d4277 ("ASoC: zx: Add zx296702 SPDIF support")
>
> ---
>
> Patch only compile tested.
> ---
> sound/soc/zte/zx296702-spdif.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/sound/soc/zte/zx296702-spdif.c b/sound/soc/zte/zx296702-spdif.c
> index 11a0e46a1156..26265ce4caca 100644
> --- a/sound/soc/zte/zx296702-spdif.c
> +++ b/sound/soc/zte/zx296702-spdif.c
> @@ -322,9 +322,9 @@ static int zx_spdif_probe(struct platform_device *pdev)
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> zx_spdif->mapbase = res->start;
> zx_spdif->reg_base = devm_ioremap_resource(&pdev->dev, res);
> - if (!zx_spdif->reg_base) {
> + if (IS_ERR(zx_spdif->reg_base)) {
> dev_err(&pdev->dev, "ioremap failed!\n");
> - return -EIO;
> + return PTR_ERR(zx_spdif->reg_base);
> }
>
> zx_spdif_dev_init(zx_spdif->reg_base);
> --
> 2.1.4
>
Reviewed-by: Jun Nie <jun.nie@xxxxxxxxxx>
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html