hfs: handle match_strdup failure

fs/hfs/super.c (parse_options): Handle match_strdup failure, twice.

Signed-off-by: Jim Meyering <[email protected]>
Cc: Roman Zippel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 32de44ed002196c5b3fd327662dc123f9899f8ac..8cf67974adf60ad79f1b88da04ba4d4fb71f3b68 100644 (file)
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -297,7 +297,8 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
                                return 0;
                        }
                        p = match_strdup(&args[0]);
-                       hsb->nls_disk = load_nls(p);
+                       if (p)
+                               hsb->nls_disk = load_nls(p);
                        if (!hsb->nls_disk) {
                                printk(KERN_ERR "hfs: unable to load codepage \"%s\"\n", p);
                                kfree(p);
@@ -311,7 +312,8 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
                                return 0;
                        }
                        p = match_strdup(&args[0]);
-                       hsb->nls_io = load_nls(p);
+                       if (p)
+                               hsb->nls_io = load_nls(p);
                        if (!hsb->nls_io) {
                                printk(KERN_ERR "hfs: unable to load iocharset \"%s\"\n", p);
                                kfree(p);