From: Greg KH <[email protected]>

3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pavel Vasilyev <[email protected]>

commit 9f132652d94c96476b0b0a8caf0c10e96ab10fa8 upstream.

Current code is ignoring the last character of "enable" and "disable"
in comparisons.

https://bugzilla.kernel.org/show_bug.cgi?id=33732

Signed-off-by: Len Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/acpi/sysfs.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -173,7 +173,7 @@ static int param_set_trace_state(const c
 {
        int result = 0;
 
-       if (!strncmp(val, "enable", strlen("enable") - 1)) {
+       if (!strncmp(val, "enable", strlen("enable"))) {
                result = acpi_debug_trace(trace_method_name, trace_debug_level,
                                          trace_debug_layer, 0);
                if (result)
@@ -181,7 +181,7 @@ static int param_set_trace_state(const c
                goto exit;
        }
 
-       if (!strncmp(val, "disable", strlen("disable") - 1)) {
+       if (!strncmp(val, "disable", strlen("disable"))) {
                int name = 0;
                result = acpi_debug_trace((char *)&name, trace_debug_level,
                                          trace_debug_layer, 0);


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