[PATCH] kexec/kexec.c: Add missing fclose()/close() call

[Youling Tang]

Add missing fclose()/close() call.

Signed-off-by: Youling Tang <tangyouling at loongson.cn>
---
 kexec/kexec.c | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/kexec/kexec.c b/kexec/kexec.c
index a62b362..f970b13 100644
--- a/kexec/kexec.c
+++ b/kexec/kexec.c
@@ -542,6 +542,7 @@ static char *slurp_file_generic(const char *filename, off_t *r_size,
 	}
 	result = fstat(fd, &stats);
 	if (result < 0) {
+		close(fd);
 		die("Cannot stat: %s: %s\n",
 			filename, strerror(errno));
 	}
@@ -553,20 +554,26 @@ static char *slurp_file_generic(const char *filename, off_t *r_size,
 	if (S_ISCHR(stats.st_mode)) {
 
 		size = lseek(fd, 0, SEEK_END);
-		if (size < 0)
+		if (size < 0) {
+			close(fd);
 			die("Can not seek file %s: %s\n", filename,
 					strerror(errno));
+		}
 
 		err = lseek(fd, 0, SEEK_SET);
-		if (err < 0)
+		if (err < 0) {
+			close(fd);
 			die("Can not seek to the begin of file %s: %s\n",
 					filename, strerror(errno));
+		}
 		buf = slurp_fd(fd, filename, size, &nread);
 	} else if (S_ISBLK(stats.st_mode)) {
 		err = ioctl(fd, BLKGETSIZE64, &size);
-		if (err < 0)
+		if (err < 0) {
+			close(fd);
 			die("Can't retrieve size of block device %s: %s\n",
 				filename, strerror(errno));
+		}
 		buf = slurp_fd(fd, filename, size, &nread);
 	} else {
 		size = stats.st_size;
@@ -578,13 +585,18 @@ static char *slurp_file_generic(const char *filename, off_t *r_size,
 			buf = slurp_fd(fd, filename, size, &nread);
 		}
 	}
-	if ((use_mmap && (buf == MAP_FAILED)) || (!use_mmap && (buf == NULL)))
+	if ((use_mmap && (buf == MAP_FAILED)) || (!use_mmap && (buf == NULL))) {
+		close(fd);
 		die("Cannot read %s", filename);
+	}
 
-	if (nread != size)
+	if (nread != size) {
+		close(fd);
 		die("Read on %s ended before stat said it should\n", filename);
+	}
 
 	*r_size = size;
+	close(fd);
 	return buf;
 }
 
@@ -1131,8 +1143,10 @@ char *get_command_line(void)
 	if (!fp)
 		die("Could not open /proc/cmdline.");
 
-	if (fgets(line, sizeof_line, fp) == NULL)
+	if (fgets(line, sizeof_line, fp) == NULL) {
+		fclose(fp);
 		die("Can't read /proc/cmdline.");
+	}
 
 	fclose(fp);
 
@@ -1257,12 +1271,14 @@ static int do_kexec_file_load(int fileind, int argc, char **argv,
 	if (i == file_types) {
 		fprintf(stderr, "Cannot determine the file type " "of %s\n",
 				kernel);
+		close(kernel_fd);
 		return EFAILED;
 	}
 
 	ret = file_type[i].load(argc, argv, kernel_buf, kernel_size, &info);
 	if (ret < 0) {
 		fprintf(stderr, "Cannot load %s\n", kernel);
+		close(kernel_fd);
 		return ret;
 	}
 
-- 
2.1.0