Cleanup patch from Denis Vlasenko. Mostly variants of removing the if(x)

from before "if(x) free(x)".

e2fsprogs/blkid/cache.c

@@ -88,8 +88,7 @@ void blkid_put_cache(blkid_cache cache)
 		}
 		blkid_free_tag(tag);
 	}
-	if (cache->bic_filename)
-		free(cache->bic_filename);
+	free(cache->bic_filename);
 
 	free(cache);
 }

e2fsprogs/blkid/devno.c

@@ -218,8 +218,7 @@ int main(int argc, char** argv)
 	}
 	printf("Looking for device 0x%04Lx\n", devno);
 	devname = blkid_devno_to_devname(devno);
-	if (devname)
-		free(devname);
+	free(devname);
 	return 0;
 }
 #endif

e2fsprogs/blkid/resolve.c

@@ -96,10 +96,8 @@ char *blkid_get_devname(blkid_cache cache, const char *token,
 	ret = blkid_strdup(blkid_dev_devname(dev));
 
 errout:
-	if (t)
-		free(t);
-	if (v)
-		free(v);
+	free(t);
+	free(v);
 	if (!cache) {
 		blkid_put_cache(c);
 	}

e2fsprogs/blkid/save.c

@@ -148,8 +148,7 @@ int blkid_flush_cache(blkid_cache cache)
 	}
 
 errout:
-	if (tmp)
-		free(tmp);
+	free(tmp);
 	return ret;
 }
 

e2fsprogs/blkid/tag.c

@@ -41,11 +41,8 @@ void blkid_free_tag(blkid_tag tag)
 	list_del(&tag->bit_tags);	/* list of tags for this device */
 	list_del(&tag->bit_names);	/* list of tags with this type */
 
-	if (tag->bit_name)
-		free(tag->bit_name);
-	if (tag->bit_val)
-		free(tag->bit_val);
-
+	free(tag->bit_name);
+	free(tag->bit_val);
 	free(tag);
 }
 
@@ -112,8 +109,7 @@ int blkid_set_tag(blkid_dev dev, const char *name,
 		return -BLKID_ERR_MEM;
 	t = blkid_find_tag_dev(dev, name);
 	if (!value) {
-		if (t)
-			blkid_free_tag(t);
+		blkid_free_tag(t);
 	} else if (t) {
 		if (!strcmp(t->bit_val, val)) {
 			/* Same thing, exit */
@@ -165,12 +161,10 @@ int blkid_set_tag(blkid_dev dev, const char *name,
 	return 0;
 
 errout:
-	if (t)
-		blkid_free_tag(t);
-	else if (val)
+	blkid_free_tag(t);
+	if (!t)
 		free(val);
-	if (head)
-		blkid_free_tag(head);
+	blkid_free_tag(head);
 	return -BLKID_ERR_MEM;
 }