On 01/04/2011 11:31 PM, Chris Ball wrote: > Thanks, I've reproduced this now. It's a bug. The reason I hadn't seen > it before is that my workflow is always to insert a card, then rmmod > mmc_block && modprobe mmc_test -- this works because the debugfs dir is > created late on the initial insertion, but still before mmc_test loads. > I compiled a kernel with MMC and mmc_test built in, and no mmc_block > support, and hit your bug. > > Here's your patch: could you send a Signed-off-by: line for it, please? > Chris, Actually i am bit new to LKML and i don't know if i should send the patch again with signed-off or simply send a signed-off: in a similar way as we send Acked-by:. Please tell me if i need to resend patch. > From: Viresh Kumar <viresh.kumar@xxxxxx> > Date: Tue, 4 Jan 2011 12:55:14 -0500 > Subject: [PATCH] mmc: register debugfs dir before calling card probe function > > This way, the probe function may register debugfs files if it wants to. > > This fixes a bug with mmc_test where mmc_test_register_file_test() is > called before the card's debugfs dir exists, and so it fails. > --- > drivers/mmc/core/bus.c | 8 ++++---- > 1 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c > index af8dc6a..63667a8 100644 > --- a/drivers/mmc/core/bus.c > +++ b/drivers/mmc/core/bus.c > @@ -303,14 +303,14 @@ int mmc_add_card(struct mmc_card *card) > type, card->rca); > } > > - ret = device_add(&card->dev); > - if (ret) > - return ret; > - > #ifdef CONFIG_DEBUG_FS > mmc_add_card_debugfs(card); > #endif > > + ret = device_add(&card->dev); > + if (ret) > + return ret; > + > mmc_card_set_present(card); > > return 0; Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxx> -- viresh -- 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
