linux-ext4 - [PATCH 12/15] mke2fs: add some error checks into PRS()

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Date:	Mon, 29 Nov 2010 17:55:14 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Theodore Tso <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org
Subject: [PATCH 12/15] mke2fs: add some error checks into PRS()

Check return value of some functions and exit if unhandled error occurred.

Signed-off-by: Namhyung Kim <namhyung@...il.com>
---
 misc/mke2fs.c |   26 ++++++++++++++++++++++----
 1 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index b88decf..6e2092d 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -1108,6 +1108,10 @@ static void PRS(int argc, char *argv[])
 	if (oldpath)
 		pathlen += strlen(oldpath);
 	newpath = malloc(pathlen);
+	if (!newpath) {
+		fprintf(stderr, _("Couldn't allocate memory for new PATH.\n"));
+		exit(1);
+	}
 	strcpy(newpath, PATH_SET);
 
 	/* Update our PATH to include /sbin  */
@@ -1138,14 +1142,28 @@ static void PRS(int argc, char *argv[])
 	profile_set_syntax_err_cb(syntax_err_report);
 	retval = profile_init(config_fn, &profile);
 	if (retval == ENOENT) {
-		profile_init(default_files, &profile);
-		profile_set_default(profile, mke2fs_default_profile);
+		retval = profile_init(default_files, &profile);
+		if (retval)
+			goto profile_error;
+		retval = profile_set_default(profile, mke2fs_default_profile);
+		if (retval)
+			goto profile_error;
+	} else {
+profile_error:
+		fprintf(stderr, _("Couldn't init profile successfully"
+				  " (error: %ld).\n"), retval);
+		exit(1);
 	}
 
 	setbuf(stdout, NULL);
 	setbuf(stderr, NULL);
-	add_error_table(&et_ext2_error_table);
-	add_error_table(&et_prof_error_table);
+	retval = add_error_table(&et_ext2_error_table);
+	if (!retval)
+		retval = add_error_table(&et_prof_error_table);
+	if (retval) {
+		fprintf(stderr, _("Unable to add error information.\n"));
+		exit(1);
+	}
 	memset(&fs_param, 0, sizeof(struct ext2_super_block));
 	fs_param.s_rev_level = 1;  /* Create revision 1 filesystems now */
 
-- 
1.7.0.4

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