From: Sudeep Holla sudeep.holla@arm.com
[ 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@arm.com Fixes: d0c0bce83122 ("firmware: arm_ffa: Setup in-kernel users of FFA partitions") Reported-by: Arunachalam Ganapathy arunachalam.ganapathy@arm.com Signed-off-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 14f900047ac0..8fa1785afd42 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -582,7 +582,7 @@ 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;