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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-05 23:52:52 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-05 23:52:52 -0400 |
| commit | a02040d8d5d533773f98e02e1a8e56db5fa7a363 (patch) | |
| tree | 5b490abce2688f80a9732346cf08127bbb48a3e3 /fs | |
| parent | 0603006b450004213eeed22d4fbcc103c994c2e6 (diff) | |
| parent | e976e56423dc1cc01686861fc3e0c6c0ec8cd8b7 (diff) | |
| download | linux-a02040d8d5d533773f98e02e1a8e56db5fa7a363.tar.bz2 | |
Merge tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore fixes from Kees Cook:
"Fixes for pstore ramoops driver to catch bad kfree() and to use better
DT bindings"
* tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ramoops: use persistent_ram_free() instead of kfree() for freeing prz
ramoops: use DT reserved-memory bindings
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/pstore/ram.c | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 47516a794011..7a034d62cf8c 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -486,30 +486,21 @@ static int ramoops_parse_dt(struct platform_device *pdev, struct ramoops_platform_data *pdata) { struct device_node *of_node = pdev->dev.of_node; - struct device_node *mem_region; - struct resource res; + struct resource *res; u32 value; int ret; dev_dbg(&pdev->dev, "using Device Tree\n"); - mem_region = of_parse_phandle(of_node, "memory-region", 0); - if (!mem_region) { - dev_err(&pdev->dev, "no memory-region phandle\n"); - return -ENODEV; - } - - ret = of_address_to_resource(mem_region, 0, &res); - of_node_put(mem_region); - if (ret) { + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { dev_err(&pdev->dev, - "failed to translate memory-region to resource: %d\n", - ret); - return ret; + "failed to locate DT /reserved-memory resource\n"); + return -EINVAL; } - pdata->mem_size = resource_size(&res); - pdata->mem_address = res.start; + pdata->mem_size = resource_size(res); + pdata->mem_address = res->start; pdata->mem_type = of_property_read_bool(of_node, "unbuffered"); pdata->dump_oops = !of_property_read_bool(of_node, "no-dump-oops"); @@ -652,11 +643,11 @@ fail_buf: kfree(cxt->pstore.buf); fail_clear: cxt->pstore.bufsize = 0; - kfree(cxt->mprz); + persistent_ram_free(cxt->mprz); fail_init_mprz: - kfree(cxt->fprz); + persistent_ram_free(cxt->fprz); fail_init_fprz: - kfree(cxt->cprz); + persistent_ram_free(cxt->cprz); fail_init_cprz: ramoops_free_przs(cxt); fail_out: |