Fix a possible leak of a file descriptor

mame · mame · commit 2c2006953f92 · 2024-11-28T12:57:28.000+09:00
The same issue as ruby/prism#3246
diff --git a/prism_compile.c b/prism_compile.c
@@ -10900,6 +10900,7 @@ pm_read_file(pm_string_t *string, const char *filepath)
 
     source = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
     if (source == MAP_FAILED) {
+        close(fd);
         return PM_STRING_INIT_ERROR_GENERIC;
     }
 

Original file line number	Diff line number	Diff line change
`@@ -10900,6 +10900,7 @@ pm_read_file(pm_string_t string, const char filepath)`
`10900`	`10900`
`10901`	`10901`	`source = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);`
`10902`	`10902`	`if (source == MAP_FAILED) {`
	`10903`	`+ close(fd);`
`10903`	`10904`	`return PM_STRING_INIT_ERROR_GENERIC;`
`10904`	`10905`	`}`
`10905`	`10906`