Not checking for non-NULL before freeing a variable, as it's unnecessary.

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5249 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -7,6 +7,7 @@
 	* src/winio.c (edit_draw): When the whole line has been coloured,
 	don't bother looking for any more starts.  This prevents some lines
 	from being erroneously marked as CENDAFTER instead of CWHOLELINE.
+	* src/*.c: Don't check for non-NULL before freeing; it's unneeded.
 
 2015-06-11  Benno Schulenberg  <bensberg@justemail.net>
 	* src/winio.c (get_key_buffer): Add some debugging code to make it

src/browser.c

@@ -405,7 +405,6 @@ char *do_browse_from(const char *inpath)
 
     /* If we can't open the path, get out. */
     if (dir == NULL) {
-	if (path != NULL)
 	free(path);
 	beep();
 	return NULL;

src/color.c

@@ -70,11 +70,9 @@ void set_colorpairs(void)
 		interface_color_pair[i].pairnum = A_NORMAL;
 	}
 
-	if (specified_color_combo[i] != NULL) {
 	free(specified_color_combo[i]);
 	specified_color_combo[i] = NULL;
     }
-    }
 
     for (; this_syntax != NULL; this_syntax = this_syntax->next) {
 	colortype *this_color = this_syntax->color;

src/files.c

@@ -830,11 +830,9 @@ void read_file(FILE *f, int fd, const char *filename, bool undoable, bool checkw
 	    /* Move fileptr back one line and blow away the old fileptr,
 	     * since its text has been saved. */
 	    fileptr = fileptr->prev;
-	    if (fileptr != NULL) {
-		if (fileptr->next != NULL)
+	    if (fileptr != NULL)
 		free(fileptr->next);
 	}
-	}
 
 	/* Attach the line at current after the line at fileptr. */
 	if (fileptr != NULL) {
@@ -1454,7 +1452,6 @@ char *get_full_path(const char *origpath)
     }
 
     /* Free d_there_file, since we're done using it. */
-    if (d_there_file != NULL)
     free(d_there_file);
 
     return d_there;
@@ -2177,7 +2174,6 @@ bool write_file(const char *name, FILE *f_open, bool tmp, append_type
 
   cleanup_and_exit:
     free(realname);
-    if (tempname != NULL)
     free(tempname);
 
     return retval;
@@ -2401,9 +2397,7 @@ bool do_writeout(bool exiting)
 		 * string's real length. */
 		unsunder(answer, answer_len);
 
-		if (full_filename != NULL)
 		free(full_filename);
-		if (full_answer != NULL)
 		free(full_answer);
 
 		if (do_warning) {

src/global.c

@@ -1580,32 +1580,25 @@ void thanks_for_all_the_fish(void)
     delwin(bottomwin);
 
 #ifndef DISABLE_JUSTIFY
-    if (quotestr != NULL)
     free(quotestr);
 #ifdef HAVE_REGEX_H
     regfree(&quotereg);
-    if (quoteerr != NULL)
     free(quoteerr);
 #endif
 #endif
 #ifndef NANO_TINY
-    if (backup_dir != NULL)
     free(backup_dir);
 #endif
 #ifndef DISABLE_OPERATINGDIR
-    if (operating_dir != NULL)
     free(operating_dir);
-    if (full_operating_dir != NULL)
     free(full_operating_dir);
 #endif
+    free(answer);
     free(last_search);
     free(last_replace);
 #ifndef DISABLE_SPELLER
-    if (alt_speller != NULL)
     free(alt_speller);
 #endif
-    if (answer != NULL)
-	free(answer);
     if (cutbuffer != NULL)
 	free_filestruct(cutbuffer);
 #ifndef DISABLE_JUSTIFY
@@ -1616,7 +1609,6 @@ void thanks_for_all_the_fish(void)
     if (openfile != NULL)
 	free_openfilestruct(openfile);
 #ifndef DISABLE_COLOR
-    if (syntaxstr != NULL)
     free(syntaxstr);
     while (syntaxes != NULL) {
 	syntaxtype *bill = syntaxes;
@@ -1692,7 +1684,6 @@ void thanks_for_all_the_fish(void)
 	free(s);
     }
 #ifndef DISABLE_NANORC
-    if (homedir != NULL)
     free(homedir);
 #endif
 }

src/help.c

@@ -387,7 +387,6 @@ void help_init(void)
 
     /* help_text has been freed and set to NULL unless the user resized
      * while in the help screen. */
-    if (help_text != NULL)
     free(help_text);
 
     /* Allocate space for the help text. */

src/nano.c

@@ -123,14 +123,10 @@ void delete_node(filestruct *fileptr)
 {
     assert(fileptr != NULL && fileptr->data != NULL);
 
-    if (fileptr->data != NULL)
     free(fileptr->data);
-
 #ifndef DISABLE_COLOR
-    if (fileptr->multidata)
     free(fileptr->multidata);
 #endif
-
     free(fileptr);
 }
 
@@ -572,10 +568,8 @@ void delete_opennode(openfilestruct *fileptr)
     free(fileptr->filename);
     free_filestruct(fileptr->fileage);
 #ifndef NANO_TINY
-    if (fileptr->current_stat != NULL)
     free(fileptr->current_stat);
 #endif
-
     free(fileptr);
 }
 

src/prompt.c

@@ -918,7 +918,6 @@ functionptrtype get_prompt_string(int *actual, bool allow_tabs,
     if (history_list != NULL) {
 	history_reset(*history_list);
 
-	if (magichistory != NULL)
 	free(magichistory);
     }
 #endif
@@ -977,7 +976,6 @@ int do_prompt(bool allow_tabs,
 
     /* prompt has been freed and set to NULL unless the user resized
      * while at the statusbar prompt. */
-    if (prompt != NULL)
     free(prompt);
 
     prompt = charalloc(((COLS - 4) * mb_cur_max()) + 1);

src/rcfile.c

@@ -985,7 +985,6 @@ void parse_linter(char *ptr)
 	return;
     }
 
-    if (endsyntax->linter != NULL)
     free(endsyntax->linter);
 
     /* Let them unset the linter by using "". */
@@ -1012,7 +1011,6 @@ void parse_formatter(char *ptr)
 	return;
     }
 
-    if (endsyntax->formatter != NULL)
     free(endsyntax->formatter);
 
     /* Let them unset the formatter by using "". */

src/text.c

@@ -885,7 +885,6 @@ void add_undo(undo_type current_action)
     while (fs->undotop != NULL && fs->undotop != fs->current_undo) {
 	undo *u2 = fs->undotop;
 	fs->undotop = fs->undotop->next;
-	if (u2->strdata != NULL)
 	free(u2->strdata);
 	if (u2->cutbuffer)
 	    free_filestruct(u2->cutbuffer);