Commit 98ecf616 authored Jan 16, 2019 by Ritesh Harjani

mmc: core: Make host->card as NULL when card is removed



Make host->card as NULL when card is removed otherwise
we do see some kernel crashes in async contexts,
where host->card is referred (as dangling pointer).

Change-Id: Ifff6c7dffa674459add8b1e179f3ff7a8ddc7071
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>

parent 06418ca4

drivers/mmc/core/bus.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -275,12 +275,15 @@ EXPORT_SYMBOL(mmc_unregister_driver);
		static void mmc_release_card(struct device *dev)
		{
		struct mmc_card *card = mmc_dev_to_card(dev);
		struct mmc_host *host = card->host;

		sdio_free_common_cis(card);

		kfree(card->info);

		kfree(card);
		if (host)
		host->card = NULL;
		}

		/*