From: Javier Martinez Canillas Date: Fri, 27 May 2016 14:18:15 +0000 (-0400) Subject: mwifiex: only call mwifiex_sdio_probe_of() if dev has an OF node X-Git-Tag: v4.8-rc1~140^2~279^2~26 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=6f49208fec850639f56ed850ab79dbe7f6979221;p=linux.git mwifiex: only call mwifiex_sdio_probe_of() if dev has an OF node SDIO is an auto enumerable bus so the SDIO devices are matched using the sdio_device_id table and not using compatible strings from a OF id table. However, commit ce4f6f0c353b ("mwifiex: add platform specific wakeup interrupt support") allowed to match nodes defined as child of the SDIO host controller in the probe function using a compatible string to setup platform specific parameters in the DT. The problem is that the OF parse function is always called regardless if the SDIO dev has an OF node associated or not, and prints an error if it is not found. So, on a platform that doesn't have a node for a SDIO dev, the following misleading error message will be printed: [ 12.480042] mwifiex_sdio mmc2:0001:1: sdio platform data not available Signed-off-by: Javier Martinez Canillas Reviewed-by: Julian Calaby Signed-off-by: Kalle Valo --- diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c index 674465e0d837..3b30f27aab82 100644 --- a/drivers/net/wireless/marvell/mwifiex/sdio.c +++ b/drivers/net/wireless/marvell/mwifiex/sdio.c @@ -102,8 +102,7 @@ static int mwifiex_sdio_probe_of(struct device *dev, struct sdio_mmc_card *card) struct mwifiex_plt_wake_cfg *cfg; int ret; - if (!dev->of_node || - !of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) { + if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) { dev_err(dev, "sdio platform data not available\n"); return -1; } @@ -189,7 +188,8 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) } /* device tree node parsing and platform specific configuration*/ - mwifiex_sdio_probe_of(&func->dev, card); + if (func->dev.of_node) + mwifiex_sdio_probe_of(&func->dev, card); if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops, MWIFIEX_SDIO)) {