diff --git a/core/timeline/tl_edl.c b/core/timeline/tl_edl.c
index fb8441d322..5ec04ac716 100644
--- a/core/timeline/tl_edl.c
+++ b/core/timeline/tl_edl.c
@@ -275,7 +275,7 @@ void build_edl_timeline(struct MPContext *mpctx)
                     p->end = *t;
                 if (*t >= 0 && parts[i].duration) {
                     *t -= parts[i].duration;
-                    if (t < 0) {
+                    if (*t < 0) {
                         mp_msg(MSGT_CPLAYER, MSGL_ERR, "EDL: Negative time "
                                "on line %d!\n", parts[i].lineno);
                         goto out;
diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index 86c17ea9a8..06db8302b1 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -1824,6 +1824,8 @@ static int demux_mkv_read_block_lacing(bstr *buffer, int *laces,
             }
             lace_size[i] = buffer->len - total;
             break;
+
+        default: abort();
         }
     }
 
diff --git a/demux/demux_ts.c b/demux/demux_ts.c
index 40675fa6f5..8b2a2d84ba 100644
--- a/demux/demux_ts.c
+++ b/demux/demux_ts.c
@@ -1024,11 +1024,6 @@ static demuxer_t *demux_open_ts(demuxer_t * demuxer)
 
 
 	demuxer->priv = priv;
-	if(demuxer->stream->type != STREAMTYPE_FILE)
-		demuxer->seekable = 1;
-	else
-		demuxer->seekable = 1;
-
 
 	params.atype = params.vtype = params.stype = UNKNOWN;
 	params.apid = demuxer->audio->id;
diff --git a/stream/cookies.c b/stream/cookies.c
index 5d772b8a6a..a7f01ef420 100644
--- a/stream/cookies.c
+++ b/stream/cookies.c
@@ -112,7 +112,7 @@ static int parse_line(char **ptr, char *cols[6])
 /* Loads a file into RAM */
 static char *load_file(const char *filename, int64_t * length)
 {
-    int fd = -1;
+    int fd;
     char *buffer = NULL;
 
     mp_msg(MSGT_NETWORK, MSGL_V, "Loading cookie file: %s\n", filename);
diff --git a/stream/dvb_tune.c b/stream/dvb_tune.c
index d5ea8c7b1a..8b24e88ede 100644
--- a/stream/dvb_tune.c
+++ b/stream/dvb_tune.c
@@ -325,7 +325,7 @@ static int tune_it(int fd_frontend, int fd_sec, unsigned int freq, unsigned int
 	fe_transmit_mode_t TransmissionMode, fe_guard_interval_t guardInterval, fe_bandwidth_t bandwidth,
 	fe_code_rate_t LP_CodeRate, fe_hierarchy_t hier, int timeout)
 {
-  int res, hi_lo = 0, dfd;
+  int hi_lo = 0, dfd;
   struct dvb_frontend_parameters feparams;
   struct dvb_frontend_info fe_info;
 
@@ -334,7 +334,7 @@ static int tune_it(int fd_frontend, int fd_sec, unsigned int freq, unsigned int
 
 
   memset(&feparams, 0, sizeof(feparams));
-  if ( (res = ioctl(fd_frontend,FE_GET_INFO, &fe_info) < 0))
+  if ( ioctl(fd_frontend,FE_GET_INFO, &fe_info) < 0)
   {
         mp_msg(MSGT_DEMUX, MSGL_FATAL, "FE_GET_INFO FAILED\n");
         return -1;
diff --git a/stream/http.c b/stream/http.c
index eb0ea701b6..2ec7c9d58c 100644
--- a/stream/http.c
+++ b/stream/http.c
@@ -187,9 +187,9 @@ static int scast_streaming_start(stream_t *stream) {
   int metaint;
   scast_data_t *scast_data;
   HTTP_header_t *http_hdr = stream->streaming_ctrl->data;
-  int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
   if (!stream || stream->fd < 0 || !http_hdr)
     return -1;
+  int is_ultravox = strcasecmp(stream->streaming_ctrl->url->protocol, "unsv") == 0;
   if (is_ultravox)
     metaint = 0;
   else {
diff --git a/stream/stream_cdda.c b/stream/stream_cdda.c
index 6fbd18fcc2..a99150f65d 100644
--- a/stream/stream_cdda.c
+++ b/stream/stream_cdda.c
@@ -312,7 +312,7 @@ static int control(stream_t *stream, int cmd, void *arg)
             // returning error.
             return STREAM_OK;
         }
-        seek_sector = track <= 0 ? p->start_sector
+        seek_sector = track == 0 ? p->start_sector
                       : p->cd->disc_toc[track].dwStartSector;
         r = seek(stream, seek_sector * CDIO_CD_FRAMESIZE_RAW);
         if (r)
diff --git a/stream/tvi_v4l2.c b/stream/tvi_v4l2.c
index abe455d8bf..06344d1fa9 100644
--- a/stream/tvi_v4l2.c
+++ b/stream/tvi_v4l2.c
@@ -1747,29 +1747,6 @@ static int get_video_framesize(priv_t *priv)
     return priv->format.fmt.pix.sizeimage;
 }
 
-//#define DOUBLESPEED
-#ifdef DOUBLESPEED
-// for testing purposes only
-static void read_doublespeed(priv_t *priv)
-{
-    char *bufx = calloc(priv->audio_in.blocksize, 2);
-    short *s;
-    short *d;
-    int i;
-
-    audio_in_read_chunk(&priv->audio_in, bufx);
-    audio_in_read_chunk(&priv->audio_in, bufx+priv->audio_in.blocksize);
-
-    s = bufx;
-    d = priv->audio_ringbuffer+priv->audio_tail*priv->audio_in.blocksize;
-    for (i = 0; i < priv->audio_in.blocksize/2; i++) {
-        *d++ = *s++;
-        *s++;
-    }
-
-}
-#endif
-
 static void *audio_grabber(void *data)
 {
     priv_t *priv = (priv_t*)data;
@@ -1788,12 +1765,8 @@ static void *audio_grabber(void *data)
 
     for (; !priv->shutdown;)
     {
-#ifdef DOUBLESPEED
-        read_doublespeed(priv);
-#else
         if (audio_in_read_chunk(&priv->audio_in, priv->audio_ringbuffer+priv->audio_tail*priv->audio_in.blocksize) < 0)
             continue;
-#endif
         pthread_mutex_lock(&priv->skew_mutex);
         if (priv->first_frame == 0) {
             // there is no first frame yet (unlikely to happen)
diff --git a/sub/find_subfiles.c b/sub/find_subfiles.c
index aa8df2ea49..e77015114b 100644
--- a/sub/find_subfiles.c
+++ b/sub/find_subfiles.c
@@ -69,7 +69,6 @@ static struct bstr guess_lang_from_filename(struct bstr name)
 
 struct sub_list {
     struct subfn subs[MAX_SUBTITLE_FILES];
-    int sid;
     void *ctx;
 };
 
diff --git a/sub/subreader.c b/sub/subreader.c
index a109d0c362..090cd0a8b4 100644
--- a/sub/subreader.c
+++ b/sub/subreader.c
@@ -1511,7 +1511,7 @@ if ((suboverlap_enabled == 2) ||
 	                               // from a block of sub_to_add+1 subs
 	placeholder = malloc(sizeof(int *) * counter);
 	for (i = 0; i < counter; ++i) {
-	    placeholder[i] = malloc(sizeof(int) * lines_to_add);
+	    placeholder[i] = malloc(sizeof(int) * lines_to_add + 1);
 	    for (j = 0; j < lines_to_add; ++j) {
 		placeholder[i][j] = -1;
 	    }
diff --git a/video/filter/vf_hqdn3d.c b/video/filter/vf_hqdn3d.c
index 4f49f12715..c5d99b2ace 100644
--- a/video/filter/vf_hqdn3d.c
+++ b/video/filter/vf_hqdn3d.c
@@ -62,7 +62,7 @@ static int config(struct vf_instance *vf,
 	unsigned int flags, unsigned int outfmt){
 
 	uninit(vf);
-        vf->priv->Line = malloc(width*sizeof(int));
+        vf->priv->Line = malloc(width*sizeof(unsigned int));
 
 	return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 }
diff --git a/video/filter/vf_yadif.c b/video/filter/vf_yadif.c
index 01c3787048..017e7c515c 100644
--- a/video/filter/vf_yadif.c
+++ b/video/filter/vf_yadif.c
@@ -393,7 +393,7 @@ static int config(struct vf_instance *vf,
 
             vf->priv->stride[i]= w;
             for(j=0; j<3; j++)
-                vf->priv->ref[j][i]= (char *)malloc(w*h*sizeof(uint8_t))+3*w;
+                vf->priv->ref[j][i]= (char *)malloc(w*h)+3*w;
         }
 
 	return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
diff --git a/video/out/vo_opengl_old.c b/video/out/vo_opengl_old.c
index 7556bccdff..cd92acfaa0 100644
--- a/video/out/vo_opengl_old.c
+++ b/video/out/vo_opengl_old.c
@@ -565,7 +565,7 @@ static void replace_var_char(char **text, const char *name, char replace)
 // Append template to *text. Possibly initialize *text if it's NULL.
 static void append_template(char **text, const char* template)
 {
-    if (!text)
+    if (!*text)
         *text = talloc_strdup(NULL, template);
     else
         *text = talloc_strdup_append(*text, template);