diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index 0743237..cf0ed6c 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -2034,7 +2034,7 @@
 	 * but moving the free code outside the munmap() handler fixes
 	 * all this... If someone knows why, please explain me (Ronald)
 	 */
-	if (!!mutex_trylock(&zr->resource_lock)) {
+	if (mutex_trylock(&zr->resource_lock)) {
 		/* we obtained it! Let's try to free some things */
 		if (fh->jpg_buffers.ready_to_be_freed)
 			jpg_fbuffer_free(file);
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 524b83b..51bc7e2 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -216,7 +216,7 @@
 	int last_devnum = -1;
 	struct gendisk *gd;
 
-	if (!!mutex_trylock(&mtd_table_mutex)) {
+	if (mutex_trylock(&mtd_table_mutex)) {
 		mutex_unlock(&mtd_table_mutex);
 		BUG();
 	}
@@ -294,7 +294,7 @@
 
 int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old)
 {
-	if (!!mutex_trylock(&mtd_table_mutex)) {
+	if (mutex_trylock(&mtd_table_mutex)) {
 		mutex_unlock(&mtd_table_mutex);
 		BUG();
 	}