From 8665d5c2210040a05d26abc1ec2c81fb1cea4630 Mon Sep 17 00:00:00 2001 From: Mikko Rapeli Date: Wed, 13 Mar 2024 15:37:43 +0200 Subject: mmc core block.c: initialize mmc_blk_ioc_data Commit "mmc: core: Use mrq.sbc in close-ended ffu" adds flags uint to struct mmc_blk_ioc_data but it does not get initialized for RPMB ioctls which now fail. Fix this by always initializing the struct and flags to zero. Fixes access to RPMB storage. Upstream-Status: Submitted [https://lore.kernel.org/all/20240313133744.2405325-1-mikko.rapeli@linaro.org/] Fixes: 4d0c8d0aef63 ("mmc: core: Use mrq.sbc in close-ended ffu") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218587 Link: https://lore.kernel.org/all/20231129092535.3278-1-avri.altman@wdc.com/ Cc: Avri Altman Cc: Ulf Hansson Cc: Adrian Hunter Cc: linux-mmc@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Mikko Rapeli Acked-by: Adrian Hunter Reviewed-by: Avri Altman --- drivers/mmc/core/block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index ea60efaecb0d..5487c71ae0df 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -415,7 +415,7 @@ static struct mmc_blk_ioc_data *mmc_blk_ioctl_copy_from_user( struct mmc_blk_ioc_data *idata; int err; - idata = kmalloc(sizeof(*idata), GFP_KERNEL); + idata = kzalloc(sizeof(*idata), GFP_KERNEL); if (!idata) { err = -ENOMEM; goto out; -- cgit v1.2.3