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| author | Joerg Roedel <jroedel@suse.de> | 2017-08-23 16:28:09 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-23 16:28:09 +0200 |
| commit | 3ff2dcc058946c48afd3f2c8cd9e3a880b466c5b (patch) | |
| tree | c22d36b858dde810a04ad9a1153dca04741185b4 /drivers/iommu/fsl_pamu.c | |
| parent | 68a17f0be6feb8de1f5e26b93f49791031374c4c (diff) | |
| download | linux-3ff2dcc058946c48afd3f2c8cd9e3a880b466c5b.tar.bz2 | |
iommu/pamu: Fix PAMU boot crash
Commit 68a17f0be6fe introduced an initialization order
problem, where devices are linked against an iommu which is
not yet initialized. Fix it by initializing the iommu-device
before the iommu-ops are registered against the bus.
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Fixes: 68a17f0be6fe ('iommu/pamu: Add support for generic iommu-device')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/fsl_pamu.c')
| -rw-r--r-- | drivers/iommu/fsl_pamu.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/iommu/fsl_pamu.c b/drivers/iommu/fsl_pamu.c index 9238a85de53e..9ee8e9e161f5 100644 --- a/drivers/iommu/fsl_pamu.c +++ b/drivers/iommu/fsl_pamu.c @@ -44,8 +44,6 @@ static struct paace *spaact; static bool probed; /* Has PAMU been probed? */ -struct iommu_device pamu_iommu; /* IOMMU core code handle */ - /* * Table for matching compatible strings, for device tree * guts node, for QorIQ SOCs. @@ -1156,18 +1154,6 @@ static int fsl_pamu_probe(struct platform_device *pdev) if (ret) goto error_genpool; - ret = iommu_device_sysfs_add(&pamu_iommu, dev, NULL, "iommu0"); - if (ret) - goto error_genpool; - - iommu_device_set_ops(&pamu_iommu, &fsl_pamu_ops); - - ret = iommu_device_register(&pamu_iommu); - if (ret) { - dev_err(dev, "Can't register iommu device\n"); - goto error_sysfs; - } - pamubypenr = in_be32(&guts_regs->pamubypenr); for (pamu_reg_off = 0, pamu_counter = 0x80000000; pamu_reg_off < size; @@ -1195,9 +1181,6 @@ static int fsl_pamu_probe(struct platform_device *pdev) return 0; -error_sysfs: - iommu_device_sysfs_remove(&pamu_iommu); - error_genpool: gen_pool_destroy(spaace_pool); |