On Tue, Mar 10, 2020 at 10:12:21AM +0100, Joerg Roedel wrote: > From: Joerg Roedel <[email protected]> > > Some unrelated changes in the iommu code caused a new warning to > appear in the arm-smmu driver: > > CC drivers/iommu/arm-smmu.o > drivers/iommu/arm-smmu.c: In function 'arm_smmu_add_device': > drivers/iommu/arm-smmu.c:1441:2: warning: 'smmu' may be used uninitialized in > this function [-Wmaybe-uninitialized] > arm_smmu_rpm_put(smmu); > ^~~~~~~~~~~~~~~~~~~~~~ > > The warning is a false positive, but initialize the variable to NULL > to get rid of it. > > Tested-by: Will Deacon <[email protected]> # arm-smmu > Signed-off-by: Joerg Roedel <[email protected]>
Reviewed-by: Jean-Philippe Brucker <[email protected]> > --- > drivers/iommu/arm-smmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c > index 16c4b87af42b..980aae73b45b 100644 > --- a/drivers/iommu/arm-smmu.c > +++ b/drivers/iommu/arm-smmu.c > @@ -1383,7 +1383,7 @@ struct arm_smmu_device *arm_smmu_get_by_fwnode(struct > fwnode_handle *fwnode) > > static int arm_smmu_add_device(struct device *dev) > { > - struct arm_smmu_device *smmu; > + struct arm_smmu_device *smmu = NULL; > struct arm_smmu_master_cfg *cfg; > struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); > int i, ret; > -- > 2.17.1 > _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
