[PATCH 5.15 435/667] firmware: arm_ffa: Fix uuid parameter to ffa_partition_probe

[Greg Kroah-Hartman]

From: Sudeep Holla <sudeep.holla@xxxxxxx>

[ Upstream commit f3c45c045e25ed52461829d2ce07954f72b6ad15 ]

While we pass uuid_null intentionally to ffa_partition_probe in
ffa_setup_partitions to get the count of the partitions, it must not be
uuid_null in ffa_partition_info_get which is used by the ffa_drivers
to fetch the specific partition info passing the UUID of the partition.

Fix ffa_partition_info_get by passing the received uuid down to
ffa_partition_probe so that the correct partition information is fetched.

Link: https://lore.kernel.org/r/20220429113946.2087145-1-sudeep.holla@xxxxxxx
Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions")
Reported-by: Arunachalam Ganapathy <arunachalam.ganapathy@xxxxxxx>
Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/firmware/arm_ffa/driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index c9fb56afbcb4..891d7ecf8759 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -556,7 +556,7 @@ static int ffa_partition_info_get(const char *uuid_str,
 		return -ENODEV;
 	}
 
-	count = ffa_partition_probe(&uuid_null, &pbuf);
+	count = ffa_partition_probe(&uuid, &pbuf);
 	if (count <= 0)
 		return -ENOENT;
 
-- 
2.35.1