diff mbox series

[v2,1/2] mmc: renesas_sdhi: Get the reset handle early in the probe

Message ID 20220622173614.12778-2-prabhakar.mahadev-lad.rj@bp.renesas.com
State Superseded
Headers show
Series mmc: renesas_sdhi: Trivial fixes | expand

Commit Message

Prabhakar Mahadev Lad June 22, 2022, 5:36 p.m. UTC
In case of devm_reset_control_get_optional_exclusive() failure we returned
directly instead of jumping to the error path to roll back initialization.

This patch moves devm_reset_control_get_optional_exclusive() early in the
probe so that we have the reset handle prior to initialization of the
hardware.

Fixes: b4d86f37eacb7 ("mmc: renesas_sdhi: do hard reset if possible")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/mmc/host/renesas_sdhi_core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Geert Uytterhoeven June 22, 2022, 6:14 p.m. UTC | #1
On Wed, Jun 22, 2022 at 7:36 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> In case of devm_reset_control_get_optional_exclusive() failure we returned
> directly instead of jumping to the error path to roll back initialization.
>
> This patch moves devm_reset_control_get_optional_exclusive() early in the
> probe so that we have the reset handle prior to initialization of the
> hardware.
>
> Fixes: b4d86f37eacb7 ("mmc: renesas_sdhi: do hard reset if possible")
> Reported-by: Pavel Machek <pavel@denx.de>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox series

Patch

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index 4404ca1f98d8..0d258b6e1a43 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -938,6 +938,10 @@  int renesas_sdhi_probe(struct platform_device *pdev,
 	if (IS_ERR(priv->clk_cd))
 		return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk_cd), "cannot get cd clock");
 
+	priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
+	if (IS_ERR(priv->rstc))
+		return PTR_ERR(priv->rstc);
+
 	priv->pinctrl = devm_pinctrl_get(&pdev->dev);
 	if (!IS_ERR(priv->pinctrl)) {
 		priv->pins_default = pinctrl_lookup_state(priv->pinctrl,
@@ -1030,10 +1034,6 @@  int renesas_sdhi_probe(struct platform_device *pdev,
 	if (ret)
 		goto efree;
 
-	priv->rstc = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL);
-	if (IS_ERR(priv->rstc))
-		return PTR_ERR(priv->rstc);
-
 	ver = sd_ctrl_read16(host, CTL_VERSION);
 	/* GEN2_SDR104 is first known SDHI to use 32bit block count */
 	if (ver < SDHI_VER_GEN2_SDR104 && mmc_data->max_blk_count > U16_MAX)