Showing error 1877

User: Jiri Slaby
Error type: Invalid Pointer Dereference
Error type description: A pointer which is invalid is being dereferenced
File location: fs/reiserfs/super.c
Line in file: 999
Project: Linux Kernel
Project version: 2.6.28
Tools: Smatch (1.59)
Entered: 2013-09-11 08:47:26 UTC

Source: 

 969                                reiserfs_warning(s,
 970                                                 "reiserfs_parse_options: bad value %s",
 971                                                 arg);
 972                                return 0;
 973                        }
 974                        *commit_max_age = (unsigned int)val;
 975                }
 976
 977                if (c == 'w') {
 978                        reiserfs_warning(s, "reiserfs: nolargeio option is no longer supported");
 979                        return 0;
 980                }
 981
 982                if (c == 'j') {
 983                        if (arg && *arg && jdev_name) {
 984                                if (*jdev_name) {        //Hm, already assigned?
 985                                        reiserfs_warning(s,
 986                                                         "reiserfs_parse_options: journal device was already  specified to be %s",
 987                                                         *jdev_name);
 988                                        return 0;
 989                                }
 990                                *jdev_name = arg;
 991                        }
 992                }
 993#ifdef CONFIG_QUOTA
 994                if (c == 'u' || c == 'g') {
 995                        int qtype = c == 'u' ? USRQUOTA : GRPQUOTA;
 996
 997                        if ((sb_any_quota_enabled(s) ||
 998                             sb_any_quota_suspended(s)) &&
 999                            (!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
1000                                reiserfs_warning(s,
1001                                                 "reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
1002                                return 0;
1003                        }
1004                        if (*arg) {        /* Some filename specified? */
1005                                if (REISERFS_SB(s)->s_qf_names[qtype]
1006                                    && strcmp(REISERFS_SB(s)->s_qf_names[qtype],
1007                                              arg)) {
1008                                        reiserfs_warning(s,
1009                                                         "reiserfs_parse_options: %s quota file already specified.",
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