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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-02 17:38:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-03-02 17:38:30 -0800 |
| commit | 3f80dd67c367878aaad16e458eebc3c8980bb841 (patch) | |
| tree | afe3a6fcc9fef494b0325ec8da94274ac9827678 /drivers/acpi | |
| parent | 080e4168c0834ccc853c48259e16a5c556c7ecba (diff) | |
| parent | 0cb3b79efabd4174ddeee40c2c1e5499ba67e067 (diff) | |
| download | linux-3f80dd67c367878aaad16e458eebc3c8980bb841.tar.bz2 | |
Merge tag 'acpi-extra-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"This fixes an apparent, but actually artificial, resource conflict
between the ACPI NVS memory region and the ACPI BERT (Boot Error
Record Table) address range (Huang Ying)"
* tag 'acpi-extra-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: APEI: Fix BERT resources conflict with ACPI NVS area
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/apei/bert.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/acpi/apei/bert.c b/drivers/acpi/apei/bert.c index a05b5c0cf181..12771fcf0417 100644 --- a/drivers/acpi/apei/bert.c +++ b/drivers/acpi/apei/bert.c @@ -97,6 +97,7 @@ static int __init bert_check_table(struct acpi_table_bert *bert_tab) static int __init bert_init(void) { + struct apei_resources bert_resources; struct acpi_bert_region *boot_error_region; struct acpi_table_bert *bert_tab; unsigned int region_len; @@ -127,13 +128,14 @@ static int __init bert_init(void) } region_len = bert_tab->region_length; - if (!request_mem_region(bert_tab->address, region_len, "APEI BERT")) { - pr_err("Can't request iomem region <%016llx-%016llx>.\n", - (unsigned long long)bert_tab->address, - (unsigned long long)bert_tab->address + region_len - 1); - return -EIO; - } - + apei_resources_init(&bert_resources); + rc = apei_resources_add(&bert_resources, bert_tab->address, + region_len, true); + if (rc) + return rc; + rc = apei_resources_request(&bert_resources, "APEI BERT"); + if (rc) + goto out_fini; boot_error_region = ioremap_cache(bert_tab->address, region_len); if (boot_error_region) { bert_print_all(boot_error_region, region_len); @@ -142,7 +144,9 @@ static int __init bert_init(void) rc = -ENOMEM; } - release_mem_region(bert_tab->address, region_len); + apei_resources_release(&bert_resources); +out_fini: + apei_resources_fini(&bert_resources); return rc; } |