Messages in this thread Patch in this message | | | From | Lv Zheng <> | Subject | [PATCH 09/31] ACPICA: Tables: Don't release ACPI_MTX_TABLES in acpi_tb_install_standard_table(). | Date | Mon, 13 Apr 2015 11:49:05 +0800 |
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From: Octavian Purdila <octavian.purdila@intel.com>
ACPICA commit c70434d4da13e65b6163c79a5aa16b40193631c7
ACPI_MTX_TABLES is acquired and released by the callers of acpi_tb_install_standard_table() so releasing it in the function itself is causing the following error in Linux kernel if the table is reloaded:
ACPI Error: Mutex [0x2] is not acquired, cannot release (20141107/utmutex-321) Call Trace: [<ffffffff81b0bd48>] dump_stack+0x4f/0x7b [<ffffffff81546bf5>] acpi_ut_release_mutex+0x47/0x67 [<ffffffff81544357>] acpi_load_table+0x73/0xcb
Link: https://github.com/acpica/acpica/commit/c70434d4 Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Cc: 3.16+ <stable@vger.kernel.org> # 3.16+ --- drivers/acpi/acpica/tbinstal.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 0d184c4..7e69bc7 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -349,7 +349,6 @@ acpi_tb_install_standard_table(acpi_physical_address address, */ acpi_tb_uninstall_table(&new_table_desc); *table_index = i; - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); return_ACPI_STATUS(AE_OK); } } -- 1.7.10
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