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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-20 17:24:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-20 17:24:14 -0700 |
| commit | 052497553e5dedc04c43800820c1d5788201cc71 (patch) | |
| tree | 952466fc0f0df2b44b8df6b087c944ddf890f709 /drivers/char | |
| parent | cae13fe4cc3f24820ffb990c09110626837e85d4 (diff) | |
| parent | 4427b1b4ec111622071ec872c94594e05635c6e9 (diff) | |
| download | lwn-052497553e5dedc04c43800820c1d5788201cc71.tar.gz lwn-052497553e5dedc04c43800820c1d5788201cc71.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (45 commits)
crypto: caam - add support for sha512 variants of existing AEAD algorithms
crypto: caam - remove unused authkeylen from caam_ctx
crypto: caam - fix decryption shared vs. non-shared key setting
crypto: caam - platform_bus_type migration
crypto: aesni-intel - fix aesni build on i386
crypto: aesni-intel - Merge with fpu.ko
crypto: mv_cesa - make count_sgs() null-pointer proof
crypto: mv_cesa - copy remaining bytes to SRAM only when needed
crypto: mv_cesa - move digest state initialisation to a better place
crypto: mv_cesa - fill inner/outer IV fields only in HMAC case
crypto: mv_cesa - refactor copy_src_to_buf()
crypto: mv_cesa - no need to save digest state after the last chunk
crypto: mv_cesa - print a warning when registration of AES algos fail
crypto: mv_cesa - drop this call to mv_hash_final from mv_hash_finup
crypto: mv_cesa - the descriptor pointer register needs to be set just once
crypto: mv_cesa - use ablkcipher_request_cast instead of the manual container_of
crypto: caam - fix printk recursion for long error texts
crypto: caam - remove unused keylen from session context
hwrng: amd - enable AMD hw rnd driver for Maple PPC boards
hwrng: amd - manage resource allocation
...
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/hw_random/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/char/hw_random/amd-rng.c | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index beecd1cf9b99..a60043b3e409 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -49,7 +49,7 @@ config HW_RANDOM_INTEL config HW_RANDOM_AMD tristate "AMD HW Random Number Generator support" - depends on HW_RANDOM && X86 && PCI + depends on HW_RANDOM && (X86 || PPC_MAPLE) && PCI default HW_RANDOM ---help--- This driver provides kernel-side support for the Random Number diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c index 0d8c5788b8e4..c6af038682f1 100644 --- a/drivers/char/hw_random/amd-rng.c +++ b/drivers/char/hw_random/amd-rng.c @@ -133,6 +133,12 @@ found: pmbase &= 0x0000FF00; if (pmbase == 0) goto out; + if (!request_region(pmbase + 0xF0, 8, "AMD HWRNG")) { + dev_err(&pdev->dev, "AMD HWRNG region 0x%x already in use!\n", + pmbase + 0xF0); + err = -EBUSY; + goto out; + } amd_rng.priv = (unsigned long)pmbase; amd_pdev = pdev; @@ -141,6 +147,7 @@ found: if (err) { printk(KERN_ERR PFX "RNG registering failed (%d)\n", err); + release_region(pmbase + 0xF0, 8); goto out; } out: @@ -149,6 +156,8 @@ out: static void __exit mod_exit(void) { + u32 pmbase = (unsigned long)amd_rng.priv; + release_region(pmbase + 0xF0, 8); hwrng_unregister(&amd_rng); } |