[COVERITY] Fix memory leak in fsck on error paths

The memory allocated by inst is not reclaimed.  There also was a
call to exit that coverity did not catch the resource leak.  This
might not really be a big issue since the memory will be freed when
fsck exits, but it should be done anyway imho.

Coverity ID: 32: Resource Leak

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

1 files changed, 3 insertions, 0 deletions

diff --git a/misc/fsck.c b/misc/fsck.c
index 06ee02b3..1dcac259 100644
--- a/misc/fsck.c
+++ b/misc/fsck.c
@@ -470,6 +470,7 @@ static int execute(const char *type, const char *device, const char *mntpt,
 	s = find_fsck(prog);
 	if (s == NULL) {
 		fprintf(stderr, _("fsck: %s: not found\n"), prog);
+		free(inst);
 		return ENOENT;
 	}
 
@@ -486,12 +487,14 @@ static int execute(const char *type, const char *device, const char *mntpt,
 		pid = -1;
 	else if ((pid = fork()) < 0) {
 		perror("fork");
+		free(inst);
 		return errno;
 	} else if (pid == 0) {
 		if (!interactive)
 			close(0);
 		(void) execv(s, argv);
 		perror(argv[0]);
+		free(inst);
 		exit(EXIT_ERROR);
 	}