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Message-Id: <1367107609-2586-1-git-send-email-linkinjeon@gmail.com> Date: Sun, 28 Apr 2013 09:06:49 +0900 From: Namjae Jeon <linkinjeon@...il.com> To: cjb@...top.org Cc: linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com>, Namjae Jeon <namjae.jeon@...sung.com>, Vivek Trivedi <t.vivek@...sung.com> Subject: [PATCH] mmc: fix refcount leak in power_ro_lock_show From: Namjae Jeon <namjae.jeon@...sung.com> when user does cat /sys/block/mmcblk0boot0/ro_lock_until_next_power_on power_ro_lock_show increments md->usage by calling mmc_blk_get but it forgets to call mmc_blk_put to restore md->usage Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com> Signed-off-by: Vivek Trivedi <t.vivek@...sung.com> --- drivers/mmc/card/block.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index e12a03c..ae8e1de 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -201,6 +201,7 @@ static ssize_t power_ro_lock_show(struct device *dev, locked = 1; ret = snprintf(buf, PAGE_SIZE, "%d\n", locked); + mmc_blk_put(md); return ret; } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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