Remove some unnecessary variable initializations

Not really bugs, just wasted. They clutter up the output of static
analysis with cppcheck.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

4 files changed, 9 insertions, 11 deletions

diff --git a/gtk-gui.c b/gtk-gui.c
index 8817d05b8..f6d81aca9 100644
--- a/gtk-gui.c
+++ b/gtk-gui.c
@@ -1173,7 +1173,7 @@ static void cell_edited_cb(GtkCellRendererText *cell, gchar *path,
 			holdnicknames->nickname = strdup(new_text);
 			holdnicknames->next = NULL;
 		} else {
-			struct device_info * top = NULL;
+			struct device_info * top;
 			struct device_info * last = holdnicknames;
 			top = (struct device_info *) malloc(sizeof( struct device_info ));
 			top->model = strdup(model);
diff --git a/parse-xml.c b/parse-xml.c
index 8128f25ee..5061227e3 100644
--- a/parse-xml.c
+++ b/parse-xml.c
@@ -169,7 +169,7 @@ static void divedate(char *buffer, void *_when)
 {
 	int d,m,y;
 	timestamp_t *when = _when;
-	int success = 0;
+	int success;
 
 	success = cur_tm.tm_sec | cur_tm.tm_min | cur_tm.tm_hour;
 	if (sscanf(buffer, "%d.%d.%d", &d, &m, &y) == 3) {
diff --git a/profile.c b/profile.c
index 0963b5c76..21fa59857 100644
--- a/profile.c
+++ b/profile.c
@@ -391,14 +391,14 @@ static void plot_one_event(struct graphics_context *gc, struct plot_info *pi, st
 			unsigned int he = event->value >> 16;
 			unsigned int o2 = event->value & 0xffff;
 			if (he) {
-				snprintf(buffer, sizeof(buffer), "%s: (%d/%d)",
+				snprintf(buffer, sizeof(buffer), "%s: (%u/%u)",
 					_(event->name), o2, he);
 			} else {
 				if (o2 == 21)
 					snprintf(buffer, sizeof(buffer), "%s: %s",
 						_(event->name), _("air"));
 				else
-					snprintf(buffer, sizeof(buffer), "%s: %d%% %s",
+					snprintf(buffer, sizeof(buffer), "%s: %u%% %s",
 						_(event->name), o2, _("O" UTF8_SUBSCRIPT_2));
 			}
 		} else {
@@ -1516,10 +1516,10 @@ static void check_gas_change_events(struct dive *dive, struct divecomputer *dc,
 static void calculate_max_limits(struct dive *dive, struct divecomputer *dc, struct graphics_context *gc)
 {
 	struct plot_info *pi;
-	int maxdepth = 0;
+	int maxdepth;
 	int maxtime = 0;
 	int maxpressure = 0, minpressure = INT_MAX;
-	int mintemp = 0, maxtemp = 0;
+	int mintemp, maxtemp;
 	int cyl;
 
 	/* The plot-info is embedded in the graphics context */
@@ -1751,8 +1751,6 @@ static void populate_pressure_information(struct dive *dive, struct divecomputer
 	for (i = 1; i < pi->nr; i++) {
 		struct plot_data *entry = pi->entry + i;
 
-		entry = pi->entry + i;
-
 		/* discrete integration of pressure over time to get the SAC rate equivalent */
 		current->pressure_time += pressure_time(dive, entry-1, entry);
 
diff --git a/windows.c b/windows.c
index 9adb21bb3..cbcee39f7 100644
--- a/windows.c
+++ b/windows.c
@@ -53,7 +53,7 @@ void subsurface_set_conf(char *name, const char *value)
 	 * to pass the boolean value), the other one passes value (the
 	 * address of the string. */
 	int wlen;
-	wchar_t *wname = NULL, *wstring = NULL;
+	wchar_t *wname, *wstring;
 
 	wname = (wchar_t *)g_utf8_to_utf16(name, -1, NULL, NULL, NULL);
 	if (!wname)
@@ -73,7 +73,7 @@ void subsurface_set_conf(char *name, const char *value)
 
 void subsurface_set_conf_bool(char *name, int value)
 {
-	wchar_t *wname = NULL;
+	wchar_t *wname;
 
 	wname = (wchar_t *)g_utf8_to_utf16(name, -1, NULL, NULL, NULL);
 	if (!wname)
@@ -89,7 +89,7 @@ const void *subsurface_get_conf(char *name)
 	const int csize = 64;
 	int blen = 0;
 	LONG ret = ERROR_MORE_DATA;
-	wchar_t *wstring = NULL, *wname = NULL;
+	wchar_t *wstring = NULL, *wname;
 	char *utf8_string;
 
 	wname = (wchar_t *)g_utf8_to_utf16(name, -1, NULL, NULL, NULL);