diff --git a/src/db.c b/src/db.c
index 5d63566a7..13126988f 100644
--- a/src/db.c
+++ b/src/db.c
@@ -951,7 +951,7 @@ void scanGenericCommand(client *c, robj *o, unsigned long cursor) {
         int filter = 0;
 
         /* Filter element if it does not match the pattern. */
-        if (!filter && use_pattern) {
+        if (use_pattern) {
             if (sdsEncodedObject(kobj)) {
                 if (!stringmatchlen(pat, patlen, kobj->ptr, sdslen(kobj->ptr), 0))
                     filter = 1;
diff --git a/src/expire.c b/src/expire.c
index 275a735a7..d2945524c 100644
--- a/src/expire.c
+++ b/src/expire.c
@@ -224,7 +224,7 @@ void activeExpireCycle(int type) {
             /* When there are less than 1% filled slots, sampling the key
              * space is expensive, so stop here waiting for better times...
              * The dictionary will be resized asap. */
-            if (num && slots > DICT_HT_INITIAL_SIZE &&
+            if (slots > DICT_HT_INITIAL_SIZE &&
                 (num*100/slots < 1)) break;
 
             /* The main collection cycle. Sample random keys among keys
diff --git a/src/networking.c b/src/networking.c
index e624dd8f9..f1c606236 100644
--- a/src/networking.c
+++ b/src/networking.c
@@ -1707,7 +1707,7 @@ int processInlineBuffer(client *c) {
     }
 
     /* Handle the \r\n case. */
-    if (newline && newline != c->querybuf+c->qb_pos && *(newline-1) == '\r')
+    if (newline != c->querybuf+c->qb_pos && *(newline-1) == '\r')
         newline--, linefeed_chars++;
 
     /* Split the input buffer up to the \r\n */
diff --git a/src/redis-cli.c b/src/redis-cli.c
index 31d2360c9..2e8984c71 100644
--- a/src/redis-cli.c
+++ b/src/redis-cli.c
@@ -5301,7 +5301,7 @@ static clusterManagerNode *clusterNodeForResharding(char *id,
         clusterManagerLogErr(invalid_node_msg, id);
         *raise_err = 1;
         return NULL;
-    } else if (node != NULL && target != NULL) {
+    } else if (target != NULL) {
         if (!strcmp(node->name, target->name)) {
             clusterManagerLogErr( "*** It is not possible to use "
                                   "the target node as "