On Tue, 18 Mar 2025 at 15:02, Miaoqian Lin <linmq006@xxxxxxxxx> wrote:
>
> Add err_free_host label to properly pair mmc_alloc_host() with
> mmc_free_host() in GPIO error paths. The allocated host memory was
> leaked when GPIO lookups failed.
>
> Fixes: e519f0bb64ef ("ARM/mmc: Convert old mmci-omap to GPIO descriptors")
> Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Applied for next and by adding a stable tag, thanks!
Kind regards
Uffe
> ---
> drivers/mmc/host/omap.c | 19 +++++++++++++------
> 1 file changed, 13 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
> index 62252ad4e20d..3cdb2fc44965 100644
> --- a/drivers/mmc/host/omap.c
> +++ b/drivers/mmc/host/omap.c
> @@ -1272,19 +1272,25 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
> /* Check for some optional GPIO controls */
> slot->vsd = devm_gpiod_get_index_optional(host->dev, "vsd",
> id, GPIOD_OUT_LOW);
> - if (IS_ERR(slot->vsd))
> - return dev_err_probe(host->dev, PTR_ERR(slot->vsd),
> + if (IS_ERR(slot->vsd)) {
> + r = dev_err_probe(host->dev, PTR_ERR(slot->vsd),
> "error looking up VSD GPIO\n");
> + goto err_free_host;
> + }
> slot->vio = devm_gpiod_get_index_optional(host->dev, "vio",
> id, GPIOD_OUT_LOW);
> - if (IS_ERR(slot->vio))
> - return dev_err_probe(host->dev, PTR_ERR(slot->vio),
> + if (IS_ERR(slot->vio)) {
> + r = dev_err_probe(host->dev, PTR_ERR(slot->vio),
> "error looking up VIO GPIO\n");
> + goto err_free_host;
> + }
> slot->cover = devm_gpiod_get_index_optional(host->dev, "cover",
> id, GPIOD_IN);
> - if (IS_ERR(slot->cover))
> - return dev_err_probe(host->dev, PTR_ERR(slot->cover),
> + if (IS_ERR(slot->cover)) {
> + r = dev_err_probe(host->dev, PTR_ERR(slot->cover),
> "error looking up cover switch GPIO\n");
> + goto err_free_host;
> + }
>
> host->slots[id] = slot;
>
> @@ -1344,6 +1350,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
> device_remove_file(&mmc->class_dev, &dev_attr_slot_name);
> err_remove_host:
> mmc_remove_host(mmc);
> +err_free_host:
> mmc_free_host(mmc);
> return r;
> }
> --
> 2.39.5 (Apple Git-154)
>
