mmc_gpio_request_ro() doesn't store the requested gpio in ctx->ro_gpio. As a result, subsequent calls to mmc_gpio_get_ro() will always fail with -ENOSYS because the gpio number isn't available to that function. Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Chris Ball <cjb@xxxxxxxxxx> --- drivers/mmc/core/slot-gpio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 0582429..4f9b366 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -99,6 +99,7 @@ int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio) return ret; ctx = host->slot.handler_priv; + ctx->ro_gpio = gpio; return gpio_request_one(gpio, GPIOF_DIR_IN, ctx->ro_label); } -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
