Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a number of bugs in the caam driver:
- device creation fails after release
- error-path NULL-pointer dereference
- spurious hardware error in RNG deinstantiation"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: caam - fix RNG deinstantiation error checking
crypto: caam - fix invalid dereference in caam_rsa_init_tfm()
crypto: caam - fix JR platform device subsequent (re)creations
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 32100c4..49cbdcb 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -506,7 +506,7 @@
ctx->dev = caam_jr_alloc();
if (IS_ERR(ctx->dev)) {
- dev_err(ctx->dev, "Job Ring Device allocation for transform failed\n");
+ pr_err("Job Ring Device allocation for transform failed\n");
return PTR_ERR(ctx->dev);
}
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index fef39f9..5d7f73d 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -281,7 +281,8 @@
/* Try to run it through DECO0 */
ret = run_descriptor_deco0(ctrldev, desc, &status);
- if (ret || status) {
+ if (ret ||
+ (status && status != JRSTA_SSRC_JUMP_HALT_CC)) {
dev_err(ctrldev,
"Failed to deinstantiate RNG4 SH%d\n",
sh_idx);
@@ -301,15 +302,13 @@
struct device *ctrldev;
struct caam_drv_private *ctrlpriv;
struct caam_ctrl __iomem *ctrl;
- int ring;
ctrldev = &pdev->dev;
ctrlpriv = dev_get_drvdata(ctrldev);
ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
- /* Remove platform devices for JobRs */
- for (ring = 0; ring < ctrlpriv->total_jobrs; ring++)
- of_device_unregister(ctrlpriv->jrpdev[ring]);
+ /* Remove platform devices under the crypto node */
+ of_platform_depopulate(ctrldev);
/* De-initialize RNG state handles initialized by this driver. */
if (ctrlpriv->rng4_sh_init)
@@ -418,10 +417,21 @@
DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n");
#endif
+static const struct of_device_id caam_match[] = {
+ {
+ .compatible = "fsl,sec-v4.0",
+ },
+ {
+ .compatible = "fsl,sec4.0",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, caam_match);
+
/* Probe routine for CAAM top (controller) level */
static int caam_probe(struct platform_device *pdev)
{
- int ret, ring, ridx, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
+ int ret, ring, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
u64 caam_id;
struct device *dev;
struct device_node *nprop, *np;
@@ -597,47 +607,24 @@
goto iounmap_ctrl;
}
- /*
- * Detect and enable JobRs
- * First, find out how many ring spec'ed, allocate references
- * for all, then go probe each one.
- */
- rspec = 0;
- for_each_available_child_of_node(nprop, np)
- if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
- of_device_is_compatible(np, "fsl,sec4.0-job-ring"))
- rspec++;
-
- ctrlpriv->jrpdev = devm_kcalloc(&pdev->dev, rspec,
- sizeof(*ctrlpriv->jrpdev), GFP_KERNEL);
- if (ctrlpriv->jrpdev == NULL) {
- ret = -ENOMEM;
+ ret = of_platform_populate(nprop, caam_match, NULL, dev);
+ if (ret) {
+ dev_err(dev, "JR platform devices creation error\n");
goto iounmap_ctrl;
}
ring = 0;
- ridx = 0;
- ctrlpriv->total_jobrs = 0;
for_each_available_child_of_node(nprop, np)
if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
of_device_is_compatible(np, "fsl,sec4.0-job-ring")) {
- ctrlpriv->jrpdev[ring] =
- of_platform_device_create(np, NULL, dev);
- if (!ctrlpriv->jrpdev[ring]) {
- pr_warn("JR physical index %d: Platform device creation error\n",
- ridx);
- ridx++;
- continue;
- }
ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
((__force uint8_t *)ctrl +
- (ridx + JR_BLOCK_NUMBER) *
+ (ring + JR_BLOCK_NUMBER) *
BLOCK_OFFSET
);
ctrlpriv->total_jobrs++;
ring++;
- ridx++;
- }
+ }
/* Check to see if QI present. If so, enable */
ctrlpriv->qi_present =
@@ -847,17 +834,6 @@
return ret;
}
-static struct of_device_id caam_match[] = {
- {
- .compatible = "fsl,sec-v4.0",
- },
- {
- .compatible = "fsl,sec4.0",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, caam_match);
-
static struct platform_driver caam_driver = {
.driver = {
.name = "caam",
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index e2bcacc..dbed8ba 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -66,7 +66,6 @@
struct caam_drv_private {
struct device *dev;
- struct platform_device **jrpdev; /* Alloc'ed array per sub-device */
struct platform_device *pdev;
/* Physical-presence section */
