Messages in this thread Patch in this message | | | From | Lv Zheng <> | Subject | [PATCH] ACPI / debugger: Fix a redundant mutex unlock issue in acpi_aml_open() | Date | Fri, 25 Dec 2015 11:22:32 +0800 |
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Fix a double mutex_unlock() issue where acpi_initialize_debugger() is called with the mutex already unlocked.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> --- drivers/acpi/acpi_dbg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpi_dbg.c b/drivers/acpi/acpi_dbg.c index fa18bd0..9c31b08 100644 --- a/drivers/acpi/acpi_dbg.c +++ b/drivers/acpi/acpi_dbg.c @@ -514,7 +514,7 @@ static int acpi_aml_open(struct inode *inode, struct file *file) if (ACPI_FAILURE(status)) { pr_err("Failed to initialize debugger.\n"); ret = -EINVAL; - goto err_lock; + goto err_exit; } pr_debug("Debugger thread initialized.\n"); @@ -531,6 +531,7 @@ err_lock: acpi_aml_active_reader = NULL; } mutex_unlock(&acpi_aml_io.lock); +err_exit: return ret; } -- 1.7.10
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