5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mikko Rapeli <mikko.rapeli@xxxxxxxxxx>
commit 0cdfe5b0bf295c0dee97436a8ed13336933a0211 upstream.
Commit 4d0c8d0aef63 ("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 fails.
Let's fix this by always initializing the struct and flags to zero.
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@xxxxxxx/
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Mikko Rapeli <mikko.rapeli@xxxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Tested-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240313133744.2405325-1-mikko.rapeli@xxxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/core/block.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -358,7 +358,7 @@ static struct mmc_blk_ioc_data *mmc_blk_
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;
