3 files changed, 6 insertions, 2 deletions

diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index 2e2e4051dfa7..c25b2b92edcf 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -723,6 +723,8 @@ get_parms(char *config_record,
                 goto do_fail;
         count = tmp1 - tmp;
         *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL);
+        if (!*action_handle)
+                goto do_fail;
         strncpy(*action_handle, tmp, count);
         *(*action_handle + count) = 0;
 
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index fba9c230a84d..a29af58cb4cd 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -941,8 +941,10 @@ acpi_thermal_write_trip_points(struct file *file,
         memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
 
         active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
-        if (!active)
+        if (!active) {
+                kfree(limit_string);
                 return_VALUE(-ENOMEM);
+        }
 
         if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument\n"));
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bd4887518373..724149d72d91 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
         if (!ACPI_SUCCESS(status))
                 return_VALUE(status);
         obj = (union acpi_object *)buffer.pointer;
-        if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) {
+        if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n"));
                 status = -EFAULT;
                 goto err;