Commit a05df03a authored by Nicolin Chen's avatar Nicolin Chen Committed by Jason Gunthorpe
Browse files

iommufd: Fix uninitialized rc in iommufd_access_rw() 

Reported by smatch:
drivers/iommu/iommufd/device.c:1392 iommufd_access_rw() error: uninitialized symbol 'rc'.

Fixes: 8d40205f ("iommufd: Add kAPI toward external drivers for kernel access")
Link: https://patch.msgid.link/r/20250227200729.85030-1-nicolinc@nvidia.com


Cc: stable@vger.kernel.org
Reported-by: default avatarkernel test robot <lkp@intel.com>
Reported-by: default avatarDan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202502271339.a2nWr9UA-lkp@intel.com/


[nicolinc: can't find an original report but only in "old smatch warnings"]
Signed-off-by: default avatarNicolin Chen <nicolinc@nvidia.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 1062d810

drivers/iommu/iommufd/device.c

+1 −1
Original line number Diff line number Diff line
@@ -1349,7 +1349,7 @@ int iommufd_access_rw(struct iommufd_access *access, unsigned long iova, 
	struct io_pagetable *iopt;

	struct iopt_area *area;

	unsigned long last_iova;

	int rc;

	int rc = -EINVAL;



	if (!length)

		return -EINVAL;