From: Minda Chen <Minda.Chen@xxxxxxx>
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 <Minda.Chen@xxxxxxx>
Signed-off-by: Barry Song <Baohua.Song@xxxxxxx>
---
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;
+ }
card = oldcard;
} else {
/*
--
2.0.4
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