diff options
| author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
|---|---|---|
| committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
| commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
| tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /drivers/char/hw_random/omap-rng.c | |
| parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
| parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) | |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'drivers/char/hw_random/omap-rng.c')
| -rw-r--r-- | drivers/char/hw_random/omap-rng.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 51738bdd834..d4e7dca06e4 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -118,18 +118,21 @@ static int __init omap_rng_probe(struct platform_device *pdev) mem = request_mem_region(res->start, res->end - res->start + 1, pdev->name); - if (mem == NULL) - return -EBUSY; + if (mem == NULL) { + ret = -EBUSY; + goto err_region; + } dev_set_drvdata(&pdev->dev, mem); - rng_base = (u32 __force __iomem *)io_p2v(res->start); + rng_base = ioremap(res->start, res->end - res->start + 1); + if (!rng_base) { + ret = -ENOMEM; + goto err_ioremap; + } ret = hwrng_register(&omap_rng_ops); - if (ret) { - release_resource(mem); - rng_base = NULL; - return ret; - } + if (ret) + goto err_register; dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n", omap_rng_read_reg(RNG_REV_REG)); @@ -138,6 +141,18 @@ static int __init omap_rng_probe(struct platform_device *pdev) rng_dev = pdev; return 0; + +err_register: + iounmap(rng_base); + rng_base = NULL; +err_ioremap: + release_resource(mem); +err_region: + if (cpu_is_omap24xx()) { + clk_disable(rng_ick); + clk_put(rng_ick); + } + return ret; } static int __exit omap_rng_remove(struct platform_device *pdev) @@ -148,6 +163,8 @@ static int __exit omap_rng_remove(struct platform_device *pdev) omap_rng_write_reg(RNG_MASK_REG, 0x0); + iounmap(rng_base); + if (cpu_is_omap24xx()) { clk_disable(rng_ick); clk_put(rng_ick); |