blkid: remove useless if-before-free tests

[kzak@redhat.com: - port the original e2fsprogs patch to util-linux-ng]

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>

6 files changed, 13 insertions, 26 deletions

diff --git a/libs/blkid/src/cache.c b/libs/blkid/src/cache.c
index 96499228..3dd40d09 100644
--- a/libs/blkid/src/cache.c
+++ b/libs/blkid/src/cache.c
@@ -179,8 +179,7 @@ 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);
 }
diff --git a/libs/blkid/src/dev.c b/libs/blkid/src/dev.c
index a1dc567e..856e7d3e 100644
--- a/libs/blkid/src/dev.c
+++ b/libs/blkid/src/dev.c
@@ -45,8 +45,7 @@ void blkid_free_dev(blkid_dev dev)
 					   bit_tags);
 		blkid_free_tag(tag);
 	}
-	if (dev->bid_name)
-		free(dev->bid_name);
+	free(dev->bid_name);
 	free(dev);
 }
 
@@ -137,18 +136,14 @@ extern int blkid_dev_set_search(blkid_dev_iterate iter,
 	new_type = malloc(strlen(search_type)+1);
 	new_value = malloc(strlen(search_value)+1);
 	if (!new_type || !new_value) {
-		if (new_type)
-			free(new_type);
-		if (new_value)
-			free(new_value);
+		free(new_type);
+		free(new_value);
 		return -1;
 	}
 	strcpy(new_type, search_type);
 	strcpy(new_value, search_value);
-	if (iter->search_type)
-		free(iter->search_type);
-	if (iter->search_value)
-		free(iter->search_value);
+	free(iter->search_type);
+	free(iter->search_value);
 	iter->search_type = new_type;
 	iter->search_value = new_value;
 	return 0;
diff --git a/libs/blkid/src/devno.c b/libs/blkid/src/devno.c
index aaaca1ba..3b1d2c32 100644
--- a/libs/blkid/src/devno.c
+++ b/libs/blkid/src/devno.c
@@ -222,8 +222,7 @@ int main(int argc, char** argv)
 	}
 	printf("Looking for device 0x%04llx\n", (long long)devno);
 	devname = blkid_devno_to_devname(devno);
-	if (devname)
-		free(devname);
+	free(devname);
 	return 0;
 }
 #endif
diff --git a/libs/blkid/src/resolve.c b/libs/blkid/src/resolve.c
index 86fa9fe8..b6ca827c 100644
--- a/libs/blkid/src/resolve.c
+++ b/libs/blkid/src/resolve.c
@@ -97,10 +97,8 @@ char *blkid_get_devname(blkid_cache cache, const char *token,
 	ret = blkid_strdup(blkid_dev_devname(dev));
 
 out:
-	if (t)
-		free(t);
-	if (v)
-		free(v);
+	free(t);
+	free(v);
 	if (!cache) {
 		blkid_put_cache(c);
 	}
diff --git a/libs/blkid/src/save.c b/libs/blkid/src/save.c
index 994b65c0..12d385d0 100644
--- a/libs/blkid/src/save.c
+++ b/libs/blkid/src/save.c
@@ -153,8 +153,7 @@ int blkid_flush_cache(blkid_cache cache)
 	}
 
 errout:
-	if (tmp)
-		free(tmp);
+	free(tmp);
 	return ret;
 }
 
diff --git a/libs/blkid/src/tag.c b/libs/blkid/src/tag.c
index 3de6bfa2..bb9171d9 100644
--- a/libs/blkid/src/tag.c
+++ b/libs/blkid/src/tag.c
@@ -54,10 +54,8 @@ 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);
 }
@@ -206,8 +204,7 @@ int blkid_set_tag(blkid_dev dev, const char *name,
 errout:
 	if (t)
 		blkid_free_tag(t);
-	else if (val)
-		free(val);
+	else free(val);
 	if (head)
 		blkid_free_tag(head);
 	return -BLKID_ERR_MEM;