diff mbox

[8/8] mwifiex: use better message and error code when OF node doesn't match

Message ID 1464358702-19083-9-git-send-email-javier@osg.samsung.com (mailing list archive)
State Accepted
Commit 5e94913f676af0dddeb6e0f3de241de5bd92f3f1
Delegated to: Kalle Valo
Headers show

Commit Message

Javier Martinez Canillas May 27, 2016, 2:18 p.m. UTC
The Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt DT
binding document lists the possible compatible strings that a SDIO child
node can have, so the driver checks if the defined in the node matches.

But the error message when that's not the case is misleading, so change
for one that makes clear what the error really is. Also, returning a -1
as errno code is not correct since that's -EPERM. A -EINVAL seems to be
a more appropriate one.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>

---

 drivers/net/wireless/marvell/mwifiex/sdio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Julian Calaby June 1, 2016, 4:23 a.m. UTC | #1
Hi All,

On Sat, May 28, 2016 at 12:18 AM, Javier Martinez Canillas
<javier@osg.samsung.com> wrote:
> The Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt DT
> binding document lists the possible compatible strings that a SDIO child
> node can have, so the driver checks if the defined in the node matches.
>
> But the error message when that's not the case is misleading, so change
> for one that makes clear what the error really is. Also, returning a -1
> as errno code is not correct since that's -EPERM. A -EINVAL seems to be
> a more appropriate one.
>
> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>

This looks sensible to me.

Reviewed-by: Julian Calaby <julian.calaby@gmail.com>

>
> ---
>
>  drivers/net/wireless/marvell/mwifiex/sdio.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Thanks,
diff mbox

Patch

diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index 8b3292eaecb2..e6d56be04e08 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -103,8 +103,8 @@  static int mwifiex_sdio_probe_of(struct device *dev, struct sdio_mmc_card *card)
 	int ret;
 
 	if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) {
-		dev_err(dev, "sdio platform data not available\n");
-		return -1;
+		dev_err(dev, "required compatible string missing\n");
+		return -EINVAL;
 	}
 
 	card->plt_of_node = dev->of_node;