[PATCH] mmc: core: sd: check card write-protect lock while resuming
From: Ulf Hansson <hidden>
Date: 2014-08-18 11:57:32
Also in:
linux-mmc
On 18 August 2014 12:00, Barry Song [off-list ref] wrote:
quoted hunk ↗ jump to hunk
From: Minda Chen <redacted> After suspending, unplug the sdcard, and set sd WP lock, insert it again, then resume the system. resume codes do not check the the sdcard write-proctect lock. now check it. Signed-off-by: Minda Chen <redacted> Signed-off-by: Barry Song <redacted> --- drivers/mmc/core/sd.c | 7 +++++++ 1 file changed, 7 insertions(+)diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 0c44510..890557a 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c@@ -910,6 +910,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, int err; u32 cid[4]; u32 rocr = 0; + bool oldro, ro; BUG_ON(!host); WARN_ON(!host->claimed);@@ -922,6 +923,12 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, if (memcmp(cid, oldcard->raw_cid, sizeof(cid)) != 0) return -ENOENT; + if (host->ops->get_ro) { + ro = host->ops->get_ro(host) ? true : false; + oldro = mmc_card_readonly(oldcard) ? true : false; + if (oldro ^ ro) + return -ENOENT; + }
Seems like this code belongs better in mmc_sd_setup_card(). Could you try moving it there. Kind regards Uffe
card = oldcard;
} else {
/*
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2.0.4
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